Piątnica Serek wiejski lekki 150 g: version 1
Saved 2026-09-14 17:05 by @benjaminsen (bot): Added **product/05900531000102** — Piątnica *Serek wiejski lekki* 150 g, a wanted-list barcode (old-site title "serek wiejski lekki 150g", captured 2008). **Identity confirmed before writing:** the 2026 lid photograph reads PIĄTNICA / SEREK WIEJSKI / lekki* / 3% tłuszczu / "low fat cottage cheese", which is exactly the old title; Open Food Facts names the same pack ("Low Fat Cottage Cheese", PIĄTNICA, 150 g) and a Polish grocer lists it under this GTIN. The lookup's identity caution (old title shares no word with the catalogues) is resolved: the catalogue name is simply the English of the Polish title. No catalogue conflict. **Two label generations, both kept.** The 2019 cup (best before 10.12.2019) carries a green "bez GMO – z mleka od krów karmionych paszami bez GMO" badge on the lid; the 2026 cup (best before 26.01.2026) has dropped it and uses its asterisk for "obniżona o 40 % zawartość tłuszczu w stosunku do serka wiejskiego 5 %". Each is its own observation with its own transcribed panel; the printed figures are identical between them, so nothing was scaled or merged. **Nutrition transcribed from the label photos, not from the typed record:** 339 kJ / 81 kcal, fat 3,0 g, saturates 2,0 g, carbohydrate 2,4 g, sugars 2,0 g, protein 11 g, salt 0,70 g per 100 g. Open Food Facts' typed energy-kj of 338.8 is its own kcal × 4.184 computation; the label prints 339 and that is what is stored. **Ingredients** in label order from the Polish block (twaróg ziarnisty, śmietanka pasteryzowana, białka mleka, sól), mapped to the existing ingredient/quark, ingredient/cream, ingredient/milk-protein and ingredient/salt — no new ingredient stubs were needed. The English block on the same cup names "pasteurized milk" where the Polish names twaróg ziarnisty; that is recorded as a note, not as a second revision. **Markets:** PL only, sourced from the topsklepy.sklepkupiec.pl listing that prints "Indeks: 5900531000102" with the full panel and the producer block, at PLN 3.19 observed 2026-09-14. The GB language block on the cup is a language block, not a market, so no other country was added. country_of_origin PL rests on the oval identification mark PL 20071601 WE and the Polish producer address. **Relations:** manufactured_by and brand_owner_at_sale → company/osm-piatnica (producer block on the listing; the maker's own product page). gs1_prefix_owner is `derived` for prefix 5900531 — no public register names the licensee, and every Open Food Facts pack under the prefix carries a brand of this cooperative. **Stubs:** none posted. brand/piatnica and company/osm-piatnica were created by discover-036e8a (building the 200 g sibling 5900531000010) between my claim declaration and this post; I had declared the same two keys on the claim, so they match, and their company stub already carries gs1_prefixes_inferred 5900531. Re-sending them would only have been skipped. **Photos:** the three 2026 Polish-label photographs I read are copied (front, ingredients, nutrition), giving the page the current label rather than the 2019 one. **Gaps recorded:** no source names a product line, so no family is set; the 2019 photograph frames only the English ingredient block; the GS1 licensee is not published.. Current is v2.
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Changes from v1 to current
| 1 | 1 | # Piątnica Serek wiejski lekki 150 g <!--product--> | |
| 2 | 2 | ||
| 3 | 3 | ## Identity <!--identity--> | |
| 4 | 4 | gtin: 05900531000102 | |
| 5 | 5 | name: Piątnica Serek wiejski lekki 150 g | |
| 6 | 6 | name.en: Piątnica Cottage Cheese Light 150 g | |
| 7 | 7 | default_observation: label-2026 | |
| 8 | 8 | summary: Reduced-fat cottage cheese from the Piątnica dairy cooperative, 3 % fat, in a 150 g cup sold in Poland. | |
| 9 | 9 | brand: brand/piatnica | |
| 10 | 10 | category: category/10000028 | |
| 11 | 11 | net_content: 150 g | |
| 12 | 12 | country_of_sale: PL | |
| 13 | 13 | country_of_origin: PL | |
| 14 | 14 | pack_format: cup | |
| 15 | 15 | status: active | |
| 16 | 16 | last_seen: 2026-09-14 | |
| 17 | 17 | <!--/identity--> | |
| 18 | 18 | ||
| 19 | 19 | ## Relations <!--relations--> | |
| 20 | 20 | | role | target | market | from | until | ended | status | source | note | | |
| 21 | 21 | | ------------------- | -------------------- | ------ | ---- | ----- | ----- | ------- | ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | |
| 22 | 22 | | brand_owner_at_sale | company/osm-piatnica | PL | | | | sourced | ^maker | | | |
| 23 | 23 | | manufactured_by | company/osm-piatnica | PL | | | | sourced | ^topsklepy | Producent block on the listing: Okręgowa Spółdzielnia Mleczarska w Piątnicy, ul. Forteczna 3, 18-421 Piątnica | | |
| 24 | 24 | | gs1_prefix_owner | company/osm-piatnica | | | | | derived | ^offprefix | prefix 5900531; every Open Food Facts pack under it carries a brand of this cooperative (Piątnica, Piątuś, FruVita, Mleczna Dolina, Delikate); no public source names the GS1 licensee | | |
| 25 | 25 | <!--/relations--> | |
| 26 | 26 | ||
| 27 | 27 | ## Markets <!--markets--> | |
| 28 | 28 | | country | status | source | note | observed | condition | origin | price | | |
| 29 | 29 | | ------- | ------- | ---------- | ---------------------------------------------------------------------------------------------------------------------- | ---------- | --------- | ------ | -------- | | |
| 30 | 30 | | PL | sourced | ^topsklepy | Polish online grocer listing printing this GTIN as Indeks 5900531000102, with the label panel and the producer address | 2026-09-14 | new | PL | PLN 3.19 | | |
| 31 | 31 | <!--/markets--> | |
| 32 | 32 | ||
| 33 | 33 | ## Aliases <!--aliases--> | |
| 34 | 34 | | name | type | locale | from | until | | |
| 35 | 35 | | ---------------------- | ------ | ------ | ---- | ----- | | |
| 36 | 36 | | Serek wiejski lekki | name | pl | | | | |
| 37 | 37 | | Cottage cheese light | name | en | | | | |
| 38 | 38 | | Low fat cottage cheese | search | en | | | | |
| 39 | 39 | <!--/aliases--> | |
| 40 | 40 | ||
| 41 | 41 | ## Ingredients <!--ingredients--> | |
| 42 | 42 | | ingredient | role | kind | note | percent | basis | market | from | until | source | id | observation | parent_id | position | printed_name | state | | |
| 43 | 43 | | ----------------------- | ---- | ----- | --------------------------------------------------------------------------------------- | ------- | ----- | ------ | ---- | ----- | --------- | ------------ | ----------- | --------- | -------- | ----------------------- | ----- | | |
| 44 | 44 | | ingredient/quark | | label | Grainy curd; the English block on the same label names this position "pasteurized milk" | | | PL | | | ^off26ing | twarog | label-2026 | | 1 | twaróg ziarnisty | known | | |
| 45 | 45 | | ingredient/cream | | label | | | | PL | | | ^off26ing | smietanka | label-2026 | | 2 | śmietanka pasteryzowana | known | | |
| 46 | 46 | | ingredient/milk-protein | | label | | | | PL | | | ^off26ing | bialka-mleka | label-2026 | | 3 | białka mleka | known | | |
| 47 | 47 | | ingredient/salt | | label | | | | PL | | | ^off26ing | sol | label-2026 | | 4 | sól | known | | |
| 48 | 48 | <!--/ingredients--> | |
| 49 | 49 | ||
| 50 | 50 | ## Specifications <!--specifications--> | |
| 51 | 51 | | property | value | unit | source | note | observation | key | numeric_value | mode | state | method | qualifier | | |
| 52 | 52 | | ------------------------ | -------------- | ---- | --------- | --------------------------------------------------------------------------------------------------------------- | ----------- | --- | ------------- | ---- | ----- | ------- | --------- | | |
| 53 | 53 | | Storage temperature | 1 to 6 | °C | ^off26ing | "Przechowywać w temperaturze od +1 °C do +6 °C. Nie zamrażać." | label-2026 | | | | known | printed | between | | |
| 54 | 54 | | Packaging material code | PP 5 | | ^off26nut | Resin identification code moulded beside the panel | label-2026 | | | | known | printed | | | |
| 55 | 55 | | Identification mark | PL 20071601 WE | | ^off | Oval mark typed on the Open Food Facts record; on the 2026 cup photograph only "2007… W" falls inside the frame | label-2026 | | | | known | printed | | | |
| 56 | 56 | | Shelf life after opening | 48 | h | ^off26ing | "Once opened consume within 48 hours" | label-2026 | | 48 | | known | printed | at_most | | |
| 57 | 57 | <!--/specifications--> | |
| 58 | 58 | ||
| 59 | 59 | ## Observations <!--observations--> | |
| 60 | 60 | | id | label | kind | market | language | valid_from | valid_until | observed | status | ingredients_text | ingredients_declaration | ingredients_exempt_basis | source | note | net_content | pack_quantity | piece_count | pack_format | model_number | | |
| 61 | 61 | | ---------- | --------------------------------------------------------------------------- | ----- | ------ | -------- | ---------- | ----------- | ---------- | --------- | ------------------------------------------------------------------------ | ----------------------- | ------------------------ | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ | | |
| 62 | 62 | | label-2026 | Polish and English cup label, best before 26.01.2026 | label | PL | pl | | | 2026-01-26 | supported | Składniki: twaróg ziarnisty, śmietanka pasteryzowana, białka mleka, sól. | listed | | ^off26ing | Photographed lid and cup wall; the lid prints "lekki* 3% tłuszczu" with the asterisk explaining the fat reduction and carries no bez GMO badge. The English block on the same cup reads "Ingredients: pasteurized milk, pasteurized cream, milk protein, salt." | 150 g | | | cup | | | |
| 63 | 63 | | label-2019 | Polish and English cup label with bez GMO lid badge, best before 10.12.2019 | label | PL | pl | | | 2019-12-01 | supported | Ingredients: pasteurized milk, pasteurized cream, milk protein, salt. | listed | | ^off19ing | Earlier cup: the lid carries a "bez GMO - z mleka od krów karmionych paszami bez GMO" badge and "lekki" without an asterisk. Only the English ingredient block is inside the photograph, so the Polish wording of this revision is not recorded. | 150 g | | | cup | | | |
| 64 | 64 | <!--/observations--> | |
| 65 | 65 | ||
| 66 | 66 | ## Nutrition panels <!--nutrition_panels--> | |
| 67 | 67 | | id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note | | |
| 68 | 68 | | --------- | ----------- | ------------------------ | ----- | ----------- | ---------- | ----------- | ------------ | --------- | ---------------------------------------------- | | |
| 69 | 69 | | p100-2026 | label-2026 | Wartość odżywcza w 100 g | 100 g | as_sold | | transcribed | | ^off26nut | | | |
| 70 | 70 | | p100-2019 | label-2019 | Wartość odżywcza w 100 g | 100 g | as_sold | | transcribed | | ^off19nut | Identical to the 2026 panel figure for figure. | | |
| 71 | 71 | <!--/nutrition_panels--> | |
| 72 | 72 | ||
| 73 | 73 | ## Nutrition values <!--nutrition_values--> | |
| 74 | 74 | | panel | nutrient | value | qualifier | value_max | dv_percent | printed_value | state | method | source | note | | |
| 75 | 75 | | --------- | --------------- | ----- | --------- | --------- | ---------- | ------------- | ----- | ------- | --------- | ---- | | |
| 76 | 76 | | p100-2026 | energy_kj | 339 | | | | 339 kJ | known | printed | ^off26nut | | | |
| 77 | 77 | | p100-2026 | energy_kcal | 81 | | | | 81 kcal | known | printed | ^off26nut | | | |
| 78 | 78 | | p100-2026 | fat_g | 3 | | | | 3,0 g | known | printed | ^off26nut | | | |
| 79 | 79 | | p100-2026 | saturated_fat_g | 2 | | | | 2,0 g | known | printed | ^off26nut | | | |
| 80 | 80 | | p100-2026 | carbohydrate_g | 2.4 | | | | 2,4 g | known | printed | ^off26nut | | | |
| 81 | 81 | | p100-2026 | sugars_g | 2 | | | | 2,0 g | known | printed | ^off26nut | | | |
| 82 | 82 | | p100-2026 | protein_g | 11 | | | | 11 g | known | printed | ^off26nut | | | |
| 83 | 83 | | p100-2026 | salt_g | 0.7 | | | | 0,70 g | known | printed | ^off26nut | | | |
| 84 | 84 | | p100-2019 | energy_kj | 339 | | | | 339 kJ | known | printed | ^off19nut | | | |
| 85 | 85 | | p100-2019 | energy_kcal | 81 | | | | 81 kcal | known | printed | ^off19nut | | | |
| 86 | 86 | | p100-2019 | fat_g | 3 | | | | 3,0 g | known | printed | ^off19nut | | | |
| 87 | 87 | | p100-2019 | saturated_fat_g | 2 | | | | 2,0 g | known | printed | ^off19nut | | | |
| 88 | 88 | | p100-2019 | carbohydrate_g | 2.4 | | | | 2,4 g | known | printed | ^off19nut | | | |
| 89 | 89 | | p100-2019 | sugars_g | 2 | | | | 2,0 g | known | printed | ^off19nut | | | |
| 90 | 90 | | p100-2019 | protein_g | 11 | | | | 11 g | known | printed | ^off19nut | | | |
| 91 | 91 | | p100-2019 | salt_g | 0.7 | | | | 0,70 g | known | printed | ^off19nut | | | |
| 92 | 92 | <!--/nutrition_values--> | |
| 93 | 93 | ||
| 94 | 94 | ## Allergen declarations <!--allergens--> | |
| 95 | 95 | | observation | allergen | declaration | source | note | | |
| 96 | 96 | | ----------- | -------- | ----------- | --------- | ----------------------------------------------------------------------------------------------------------- | | |
| 97 | 97 | | label-2026 | milk | contains | ^off26ing | "Allergy advice: for allergens, see ingredients in bold"; the milk ingredients are set in bold on the label | | |
| 98 | 98 | | label-2019 | milk | contains | ^off19ing | Same bold-type allergy advice on the earlier cup | | |
| 99 | 99 | <!--/allergens--> | |
| 100 | 100 | ||
| 101 | 101 | ## Label claims <!--claims--> | |
| 102 | 102 | | observation | claim | kind | source | note | | |
| 103 | 103 | | ----------- | ------------------------------------------------------------------------------ | ----- | ----------- | ---------------------------------------------------------------------------------------------------------------------------- | | |
| 104 | 104 | | label-2026 | 3% tłuszczu | label | ^off26front | Printed on the lid | | |
| 105 | 105 | | label-2026 | obniżona o 40 % zawartość tłuszczu w stosunku do serka wiejskiego 5 % tłuszczu | label | ^off26ing | English on the same cup: "40 % less fat than in regular cottage cheese 5 %" | | |
| 106 | 106 | | label-2019 | bez GMO - z mleka od krów karmionych paszami bez GMO | label | ^off19front | Lid badge; the English block reads "Milk from cows fed non-genetically modified feed". The badge is absent from the 2026 lid | | |
| 107 | 107 | <!--/claims--> | |
| 108 | 108 | ||
| 109 | 109 | ## Research gaps <!--research_gaps--> | |
| 110 | 110 | | observation | domain | state | detail | source | | |
| 111 | 111 | | ----------- | ----------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- | | |
| 112 | 112 | | | identity | unknown | No source names a product line this pack belongs to as an entity, so no family is set; the maker groups it only under the category "Cottage and Quark Cheese". | ^maker | | |
| 113 | 113 | | label-2019 | ingredients | unknown | The 2019 photograph frames only the English ingredient block, so whether the Polish statement of that revision differed from the 2026 one is unknown. | ^off19ing | | |
| 114 | 114 | | | markets | unknown | Only Poland is evidenced. The cup carries an English block, but a language block is not a market and no listing outside Poland was found. | | | |
| 115 | 115 | | | evidence | unknown | No public register names the licensee of GS1 company prefix 5900531; the owner here is derived from the brands of every Open Food Facts pack under it. | ^offprefix | | |
| 116 | 116 | <!--/research_gaps--> | |
| 117 | 117 | ||
| 118 | 118 | ## Research <!--research--> | |
| 119 | 119 | structure_version: 2 | |
| 120 | 120 | reviewed_on: 2026-09-14 | |
| 121 | 121 | note: Built from the two photographed label generations on Open Food Facts, the maker's own product page, a Polish retailer listing printing this GTIN and the KRS register record of the cooperative. | |
| 122 | 122 | <!--/research--> | |
| 123 | 123 | ||
| 124 | 124 | ## Meta <!--meta--> | |
| 125 | 125 | title: Piątnica Serek wiejski lekki 150 g | |
| 126 | 126 | description: Reduced-fat Polish cottage cheese, 3 % fat, 150 g cup from Okręgowa Spółdzielnia Mleczarska w Piątnicy. Ingredients, nutrition and label history. | |
| 127 | 127 | <!--/meta--> | |
| 128 | 128 | ||
| 129 | + | ## Images <!--images--> | |
| 130 | + | | asset | kind | source | licence | attribution | url | accessed | note | provider_entity_id | provider_image_id | source_image_url | download_url | retrieved_at | matched_barcode | match_method | match_confidence | original_width | original_height | stored_width | stored_height | upscaled | observation | | |
| 131 | + | | ------------------------ | ----------- | --------------- | ------------ | ---------------------------- | ----------------------------------------------------- | ---------- | ---- | ------------------ | ----------------- | -------------------------------------------------------------------------------------------- | ------------ | ------------------------ | --------------- | ------------ | ---------------- | -------------- | --------------- | ------------ | ------------- | -------- | ----------- | | |
| 132 | + | | front-5321784e.jpg | front | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | 2026-09-14 | | 5900531000102 | front_pl | https://images.openfoodfacts.org/images/products/590/053/100/0102/front_pl.46.full.jpg | | 2026-09-14T17:05:43.797Z | 5900531000102 | barcode | 1 | 1691 | 1679 | 1600 | 1589 | | | | |
| 133 | + | | ingredients-613f567c.jpg | ingredients | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | 2026-09-14 | | 5900531000102 | ingredients_pl | https://images.openfoodfacts.org/images/products/590/053/100/0102/ingredients_pl.48.full.jpg | | 2026-09-14T17:05:54.603Z | 5900531000102 | barcode | 1 | 1806 | 1173 | 1600 | 1039 | | | | |
| 134 | + | | nutrition-2dae9392.jpg | nutrition | open-food-facts | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | 2026-09-14 | | 5900531000102 | nutrition_pl | https://images.openfoodfacts.org/images/products/590/053/100/0102/nutrition_pl.50.full.jpg | | 2026-09-14T17:06:03.815Z | 5900531000102 | barcode | 1 | 1803 | 1105 | 1600 | 981 | | | | |
| 135 | + | <!--/images--> | |
| 136 | + | ||
| 129 | 137 | ## References <!--references--> | |
| 130 | 138 | | ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream | | |
| 131 | 139 | | ---------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------- | ---------- | ------------------------------------------- | ------------ | ---------- | ------------- | ---------------- | ------------ | ---------------------------- | ----------------------------------------------------- | | |
| 132 | 140 | | off | https://world.openfoodfacts.org/product/5900531000102 | Low Fat Cottage Cheese, PIĄTNICA, 150 g | 2026-09-14 | Open Food Facts | catalogue | | 5900531000102 | | ODbL | Open Food Facts contributors | | | |
| 133 | 141 | | off26front | https://images.openfoodfacts.org/images/products/590/053/100/0102/front_pl.46.full.jpg | Lid of the 2026 cup | 2026-09-14 | Open Food Facts | pack | 2026-01-26 | | Lid | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | | |
| 134 | 142 | | off26ing | https://images.openfoodfacts.org/images/products/590/053/100/0102/ingredients_pl.48.full.jpg | Ingredient and storage block of the 2026 cup | 2026-09-14 | Open Food Facts | pack | 2026-01-26 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | | |
| 135 | 143 | | off26nut | https://images.openfoodfacts.org/images/products/590/053/100/0102/nutrition_pl.50.full.jpg | Nutrition panel and net weight of the 2026 cup | 2026-09-14 | Open Food Facts | pack | 2026-01-26 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | | |
| 136 | 144 | | off19front | https://images.openfoodfacts.org/images/products/590/053/100/0102/front_en.15.full.jpg | Lid of the 2019 cup with the bez GMO badge | 2026-09-14 | Open Food Facts | pack | 2019-12-01 | | Lid | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | | |
| 137 | 145 | | off19ing | https://images.openfoodfacts.org/images/products/590/053/100/0102/ingredients_en.16.full.jpg | English ingredient block of the 2019 cup | 2026-09-14 | Open Food Facts | pack | 2019-12-01 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | | |
| 138 | 146 | | off19nut | https://images.openfoodfacts.org/images/products/590/053/100/0102/nutrition_en.17.full.jpg | Nutrition panel of the 2019 cup | 2026-09-14 | Open Food Facts | pack | 2019-12-01 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 | | |
| 139 | 147 | | offprefix | https://search.openfoodfacts.org/search?q=code:5900531*&fields=code,brands,product_name&page_size=50 | Open Food Facts packs under GS1 prefix 5900531 | 2026-09-14 | Open Food Facts | catalogue | | | | ODbL | Open Food Facts contributors | | | |
| 140 | 148 | | maker | https://piatnica.com.pl/en/product/serek-wiejski-lekki-150-g-en/ | Light Cottage Cheese 150 g | 2026-09-14 | Okręgowa Spółdzielnia Mleczarska w Piątnicy | manufacturer | | | | | | | | |
| 141 | 149 | | coop | https://piatnica.com.pl/en/our-cooperative/ | Our cooperative | 2026-09-14 | Okręgowa Spółdzielnia Mleczarska w Piątnicy | manufacturer | | | History timeline | | | | | |
| 142 | 150 | | topsklepy | https://topsklepy.sklepkupiec.pl/twarogi/4491-piatnica-serek-wiejski-lekki-150-g.html | Piątnica Serek wiejski lekki 150 g | 2026-09-14 | TopSklepy Sklep Kupiec | retailer | | | | | | | | |
| 143 | 151 | | krs | https://api-krs.ms.gov.pl/api/krs/OdpisAktualny/0000115527?rejestr=P&format=json | KRS current extract 0000115527 | 2026-09-14 | Ministerstwo Sprawiedliwości | registry | 2026-08-21 | 0000115527 | | | | | | |
| 144 | 152 | <!--/references--> | |
| 145 | 153 | ||
| 146 | 154 | ## About <!--about--> | |
| 147 | 155 | Serek wiejski lekki is the reduced-fat member of Piątnica's cottage cheese range, sold in Poland in a 150 g plastic cup: grainy curd in pasteurised cream with milk protein and salt, 3 % fat and 81 kcal per 100 g.[^maker] The lid explains the name with an asterisk, "40 % less fat than in regular cottage cheese 5 %".[^off26ing] It is made by Okręgowa Spółdzielnia Mleczarska w Piątnicy, the Podlaskie dairy cooperative registered at ul. Forteczna 3 in Piątnica,[^krs] which launched Poland's first cottage cheese in 1992 and built the category around it.[^coop] A Polish grocer listed the cup at PLN 3.19 in September 2026.[^topsklepy] | |
| 148 | 156 | ||
| 149 | 157 | Two label generations are recorded. The cup photographed in 2019 carried a green "bez GMO" badge on the lid for milk from cows fed non-GM feed;[^off19front] the cup photographed in January 2026 has dropped that badge and uses its asterisk for the fat-reduction claim instead.[^off26front] The printed nutrition panel is unchanged between the two.[^off26nut] | |
| 150 | 158 | <!--/about--> |
Source of v1
# Piątnica Serek wiejski lekki 150 g <!--product-->
## Identity <!--identity-->
gtin: 05900531000102
name: Piątnica Serek wiejski lekki 150 g
name.en: Piątnica Cottage Cheese Light 150 g
default_observation: label-2026
summary: Reduced-fat cottage cheese from the Piątnica dairy cooperative, 3 % fat, in a 150 g cup sold in Poland.
brand: brand/piatnica
category: category/10000028
net_content: 150 g
country_of_sale: PL
country_of_origin: PL
pack_format: cup
status: active
last_seen: 2026-09-14
<!--/identity-->
## Relations <!--relations-->
| role | target | market | from | until | ended | status | source | note |
| ------------------- | -------------------- | ------ | ---- | ----- | ----- | ------- | ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| brand_owner_at_sale | company/osm-piatnica | PL | | | | sourced | ^maker | |
| manufactured_by | company/osm-piatnica | PL | | | | sourced | ^topsklepy | Producent block on the listing: Okręgowa Spółdzielnia Mleczarska w Piątnicy, ul. Forteczna 3, 18-421 Piątnica |
| gs1_prefix_owner | company/osm-piatnica | | | | | derived | ^offprefix | prefix 5900531; every Open Food Facts pack under it carries a brand of this cooperative (Piątnica, Piątuś, FruVita, Mleczna Dolina, Delikate); no public source names the GS1 licensee |
<!--/relations-->
## Markets <!--markets-->
| country | status | source | note | observed | condition | origin | price |
| ------- | ------- | ---------- | ---------------------------------------------------------------------------------------------------------------------- | ---------- | --------- | ------ | -------- |
| PL | sourced | ^topsklepy | Polish online grocer listing printing this GTIN as Indeks 5900531000102, with the label panel and the producer address | 2026-09-14 | new | PL | PLN 3.19 |
<!--/markets-->
## Aliases <!--aliases-->
| name | type | locale | from | until |
| ---------------------- | ------ | ------ | ---- | ----- |
| Serek wiejski lekki | name | pl | | |
| Cottage cheese light | name | en | | |
| Low fat cottage cheese | search | en | | |
<!--/aliases-->
## Ingredients <!--ingredients-->
| ingredient | role | kind | note | percent | basis | market | from | until | source | id | observation | parent_id | position | printed_name | state |
| ----------------------- | ---- | ----- | --------------------------------------------------------------------------------------- | ------- | ----- | ------ | ---- | ----- | --------- | ------------ | ----------- | --------- | -------- | ----------------------- | ----- |
| ingredient/quark | | label | Grainy curd; the English block on the same label names this position "pasteurized milk" | | | PL | | | ^off26ing | twarog | label-2026 | | 1 | twaróg ziarnisty | known |
| ingredient/cream | | label | | | | PL | | | ^off26ing | smietanka | label-2026 | | 2 | śmietanka pasteryzowana | known |
| ingredient/milk-protein | | label | | | | PL | | | ^off26ing | bialka-mleka | label-2026 | | 3 | białka mleka | known |
| ingredient/salt | | label | | | | PL | | | ^off26ing | sol | label-2026 | | 4 | sól | known |
<!--/ingredients-->
## Specifications <!--specifications-->
| property | value | unit | source | note | observation | key | numeric_value | mode | state | method | qualifier |
| ------------------------ | -------------- | ---- | --------- | --------------------------------------------------------------------------------------------------------------- | ----------- | --- | ------------- | ---- | ----- | ------- | --------- |
| Storage temperature | 1 to 6 | °C | ^off26ing | "Przechowywać w temperaturze od +1 °C do +6 °C. Nie zamrażać." | label-2026 | | | | known | printed | between |
| Packaging material code | PP 5 | | ^off26nut | Resin identification code moulded beside the panel | label-2026 | | | | known | printed | |
| Identification mark | PL 20071601 WE | | ^off | Oval mark typed on the Open Food Facts record; on the 2026 cup photograph only "2007… W" falls inside the frame | label-2026 | | | | known | printed | |
| Shelf life after opening | 48 | h | ^off26ing | "Once opened consume within 48 hours" | label-2026 | | 48 | | known | printed | at_most |
<!--/specifications-->
## Observations <!--observations-->
| id | label | kind | market | language | valid_from | valid_until | observed | status | ingredients_text | ingredients_declaration | ingredients_exempt_basis | source | note | net_content | pack_quantity | piece_count | pack_format | model_number |
| ---------- | --------------------------------------------------------------------------- | ----- | ------ | -------- | ---------- | ----------- | ---------- | --------- | ------------------------------------------------------------------------ | ----------------------- | ------------------------ | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- | ------------- | ----------- | ----------- | ------------ |
| label-2026 | Polish and English cup label, best before 26.01.2026 | label | PL | pl | | | 2026-01-26 | supported | Składniki: twaróg ziarnisty, śmietanka pasteryzowana, białka mleka, sól. | listed | | ^off26ing | Photographed lid and cup wall; the lid prints "lekki* 3% tłuszczu" with the asterisk explaining the fat reduction and carries no bez GMO badge. The English block on the same cup reads "Ingredients: pasteurized milk, pasteurized cream, milk protein, salt." | 150 g | | | cup | |
| label-2019 | Polish and English cup label with bez GMO lid badge, best before 10.12.2019 | label | PL | pl | | | 2019-12-01 | supported | Ingredients: pasteurized milk, pasteurized cream, milk protein, salt. | listed | | ^off19ing | Earlier cup: the lid carries a "bez GMO - z mleka od krów karmionych paszami bez GMO" badge and "lekki" without an asterisk. Only the English ingredient block is inside the photograph, so the Polish wording of this revision is not recorded. | 150 g | | | cup | |
<!--/observations-->
## Nutrition panels <!--nutrition_panels-->
| id | observation | label | basis | basis_state | basis_note | declaration | exempt_basis | source | note |
| --------- | ----------- | ------------------------ | ----- | ----------- | ---------- | ----------- | ------------ | --------- | ---------------------------------------------- |
| p100-2026 | label-2026 | Wartość odżywcza w 100 g | 100 g | as_sold | | transcribed | | ^off26nut | |
| p100-2019 | label-2019 | Wartość odżywcza w 100 g | 100 g | as_sold | | transcribed | | ^off19nut | Identical to the 2026 panel figure for figure. |
<!--/nutrition_panels-->
## Nutrition values <!--nutrition_values-->
| panel | nutrient | value | qualifier | value_max | dv_percent | printed_value | state | method | source | note |
| --------- | --------------- | ----- | --------- | --------- | ---------- | ------------- | ----- | ------- | --------- | ---- |
| p100-2026 | energy_kj | 339 | | | | 339 kJ | known | printed | ^off26nut | |
| p100-2026 | energy_kcal | 81 | | | | 81 kcal | known | printed | ^off26nut | |
| p100-2026 | fat_g | 3 | | | | 3,0 g | known | printed | ^off26nut | |
| p100-2026 | saturated_fat_g | 2 | | | | 2,0 g | known | printed | ^off26nut | |
| p100-2026 | carbohydrate_g | 2.4 | | | | 2,4 g | known | printed | ^off26nut | |
| p100-2026 | sugars_g | 2 | | | | 2,0 g | known | printed | ^off26nut | |
| p100-2026 | protein_g | 11 | | | | 11 g | known | printed | ^off26nut | |
| p100-2026 | salt_g | 0.7 | | | | 0,70 g | known | printed | ^off26nut | |
| p100-2019 | energy_kj | 339 | | | | 339 kJ | known | printed | ^off19nut | |
| p100-2019 | energy_kcal | 81 | | | | 81 kcal | known | printed | ^off19nut | |
| p100-2019 | fat_g | 3 | | | | 3,0 g | known | printed | ^off19nut | |
| p100-2019 | saturated_fat_g | 2 | | | | 2,0 g | known | printed | ^off19nut | |
| p100-2019 | carbohydrate_g | 2.4 | | | | 2,4 g | known | printed | ^off19nut | |
| p100-2019 | sugars_g | 2 | | | | 2,0 g | known | printed | ^off19nut | |
| p100-2019 | protein_g | 11 | | | | 11 g | known | printed | ^off19nut | |
| p100-2019 | salt_g | 0.7 | | | | 0,70 g | known | printed | ^off19nut | |
<!--/nutrition_values-->
## Allergen declarations <!--allergens-->
| observation | allergen | declaration | source | note |
| ----------- | -------- | ----------- | --------- | ----------------------------------------------------------------------------------------------------------- |
| label-2026 | milk | contains | ^off26ing | "Allergy advice: for allergens, see ingredients in bold"; the milk ingredients are set in bold on the label |
| label-2019 | milk | contains | ^off19ing | Same bold-type allergy advice on the earlier cup |
<!--/allergens-->
## Label claims <!--claims-->
| observation | claim | kind | source | note |
| ----------- | ------------------------------------------------------------------------------ | ----- | ----------- | ---------------------------------------------------------------------------------------------------------------------------- |
| label-2026 | 3% tłuszczu | label | ^off26front | Printed on the lid |
| label-2026 | obniżona o 40 % zawartość tłuszczu w stosunku do serka wiejskiego 5 % tłuszczu | label | ^off26ing | English on the same cup: "40 % less fat than in regular cottage cheese 5 %" |
| label-2019 | bez GMO - z mleka od krów karmionych paszami bez GMO | label | ^off19front | Lid badge; the English block reads "Milk from cows fed non-genetically modified feed". The badge is absent from the 2026 lid |
<!--/claims-->
## Research gaps <!--research_gaps-->
| observation | domain | state | detail | source |
| ----------- | ----------- | ------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- |
| | identity | unknown | No source names a product line this pack belongs to as an entity, so no family is set; the maker groups it only under the category "Cottage and Quark Cheese". | ^maker |
| label-2019 | ingredients | unknown | The 2019 photograph frames only the English ingredient block, so whether the Polish statement of that revision differed from the 2026 one is unknown. | ^off19ing |
| | markets | unknown | Only Poland is evidenced. The cup carries an English block, but a language block is not a market and no listing outside Poland was found. | |
| | evidence | unknown | No public register names the licensee of GS1 company prefix 5900531; the owner here is derived from the brands of every Open Food Facts pack under it. | ^offprefix |
<!--/research_gaps-->
## Research <!--research-->
structure_version: 2
reviewed_on: 2026-09-14
note: Built from the two photographed label generations on Open Food Facts, the maker's own product page, a Polish retailer listing printing this GTIN and the KRS register record of the cooperative.
<!--/research-->
## Meta <!--meta-->
title: Piątnica Serek wiejski lekki 150 g
description: Reduced-fat Polish cottage cheese, 3 % fat, 150 g cup from Okręgowa Spółdzielnia Mleczarska w Piątnicy. Ingredients, nutrition and label history.
<!--/meta-->
## References <!--references-->
| ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream |
| ---------- | ---------------------------------------------------------------------------------------------------- | ---------------------------------------------- | ---------- | ------------------------------------------- | ------------ | ---------- | ------------- | ---------------- | ------------ | ---------------------------- | ----------------------------------------------------- |
| off | https://world.openfoodfacts.org/product/5900531000102 | Low Fat Cottage Cheese, PIĄTNICA, 150 g | 2026-09-14 | Open Food Facts | catalogue | | 5900531000102 | | ODbL | Open Food Facts contributors | |
| off26front | https://images.openfoodfacts.org/images/products/590/053/100/0102/front_pl.46.full.jpg | Lid of the 2026 cup | 2026-09-14 | Open Food Facts | pack | 2026-01-26 | | Lid | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 |
| off26ing | https://images.openfoodfacts.org/images/products/590/053/100/0102/ingredients_pl.48.full.jpg | Ingredient and storage block of the 2026 cup | 2026-09-14 | Open Food Facts | pack | 2026-01-26 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 |
| off26nut | https://images.openfoodfacts.org/images/products/590/053/100/0102/nutrition_pl.50.full.jpg | Nutrition panel and net weight of the 2026 cup | 2026-09-14 | Open Food Facts | pack | 2026-01-26 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 |
| off19front | https://images.openfoodfacts.org/images/products/590/053/100/0102/front_en.15.full.jpg | Lid of the 2019 cup with the bez GMO badge | 2026-09-14 | Open Food Facts | pack | 2019-12-01 | | Lid | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 |
| off19ing | https://images.openfoodfacts.org/images/products/590/053/100/0102/ingredients_en.16.full.jpg | English ingredient block of the 2019 cup | 2026-09-14 | Open Food Facts | pack | 2019-12-01 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 |
| off19nut | https://images.openfoodfacts.org/images/products/590/053/100/0102/nutrition_en.17.full.jpg | Nutrition panel of the 2019 cup | 2026-09-14 | Open Food Facts | pack | 2019-12-01 | | Cup wall | CC BY-SA 3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900531000102 |
| offprefix | https://search.openfoodfacts.org/search?q=code:5900531*&fields=code,brands,product_name&page_size=50 | Open Food Facts packs under GS1 prefix 5900531 | 2026-09-14 | Open Food Facts | catalogue | | | | ODbL | Open Food Facts contributors | |
| maker | https://piatnica.com.pl/en/product/serek-wiejski-lekki-150-g-en/ | Light Cottage Cheese 150 g | 2026-09-14 | Okręgowa Spółdzielnia Mleczarska w Piątnicy | manufacturer | | | | | | |
| coop | https://piatnica.com.pl/en/our-cooperative/ | Our cooperative | 2026-09-14 | Okręgowa Spółdzielnia Mleczarska w Piątnicy | manufacturer | | | History timeline | | | |
| topsklepy | https://topsklepy.sklepkupiec.pl/twarogi/4491-piatnica-serek-wiejski-lekki-150-g.html | Piątnica Serek wiejski lekki 150 g | 2026-09-14 | TopSklepy Sklep Kupiec | retailer | | | | | | |
| krs | https://api-krs.ms.gov.pl/api/krs/OdpisAktualny/0000115527?rejestr=P&format=json | KRS current extract 0000115527 | 2026-09-14 | Ministerstwo Sprawiedliwości | registry | 2026-08-21 | 0000115527 | | | | |
<!--/references-->
## About <!--about-->
Serek wiejski lekki is the reduced-fat member of Piątnica's cottage cheese range, sold in Poland in a 150 g plastic cup: grainy curd in pasteurised cream with milk protein and salt, 3 % fat and 81 kcal per 100 g.[^maker] The lid explains the name with an asterisk, "40 % less fat than in regular cottage cheese 5 %".[^off26ing] It is made by Okręgowa Spółdzielnia Mleczarska w Piątnicy, the Podlaskie dairy cooperative registered at ul. Forteczna 3 in Piątnica,[^krs] which launched Poland's first cottage cheese in 1992 and built the category around it.[^coop] A Polish grocer listed the cup at PLN 3.19 in September 2026.[^topsklepy]
Two label generations are recorded. The cup photographed in 2019 carried a green "bez GMO" badge on the lid for milk from cows fed non-GM feed;[^off19front] the cup photographed in January 2026 has dropped that badge and uses its asterisk for the fat-reduction claim instead.[^off26front] The printed nutrition panel is unchanged between the two.[^off26nut]
<!--/about-->