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Which fat does your

Every Belgian has a fry shop. Almost nobody knows what is in the fryer. We ask, we gather the evidence, we put it on the map. What we do not know stays unknown.

  1. 🌻source: which plant or animal the fat came from
  2. 🏭processing: who refined or rendered it
  3. 📦product: the commercial fat the venue buys
  4. 🚚transport: how it reaches the venue
  5. 🔥kitchen: which fryer it ends up in
  6. 🍟dish: what you order
  7. 😋you: what you take in
from source to mouth, every step known or honestly unknown
🍟 The fry-shop map

Full fat map · All fats · Fat quiz: 5 questions, 1 badge

🍟 Frituren · 🍽️ Restaurants · ☕ Cafés · 🚐 Foodtrucks · 🏭 Grootkeukens · 🥐 Bakkerijen · 🏭 Industrie

I am an operator · government · a school · a researcher

🔬 Fat is not a detail

The fat in the fryer decides the taste of your fries and what you take in. Old fat is full of breakdown products (polar compoundsBreakdown products that form when fat is heated long or too hot. European food inspections measure this as "TPM": above a threshold (~25% in most countries) frying fat is rejected. This is the objective measure of fat freshness.). Since 2021 the EU caps industrial trans fatsFats created by industrial partial hydrogenation of oil. Strongly linked to cardiovascular disease; EU regulation 2019/649 limits them to 2 grams per 100 grams of fat since April 2021. at 2 grams per 100 grams of fat. Which fat, how fresh, with what evidence: that is what this register records.

🐄 Beef tallow, the Flemish tradition. Dossier ›
🌻 Sunflower oil, the plant-based alternative. Dossier ›

🎯 Five goals, measurable

Nobody gets punished here. Those who do it right can show it in black and white.

  1. A dossier for every Belgian fry shop. 80.808zaken in het register die eten bereiden met bak- of frituurvet (demo-zaken uitgesloten)
    Bron: KBO-ondernemingsregister, gefilterd op horeca-NACE en naam-heuristiek
    Gemeten op 9/10/2026     are live.
  2. 100 venues confirming their own fat. Only then comes Belgium's first Transparency Index.
    The counter is at zero. Be the first in your municipality
  3. One municipality fully mapped, as proof it can be done.
  4. Fat freshness (TPM) measured at 10 pilot venues. Measured, not estimated.
  5. Open data for government and research. API is already there.

🎁 Operator? Confirm your fat.

The first 100 venues get gold on the map, a free fat seal with QR for the menu and a business website by Digital Farmers worth €1,000. It costs you nothing. Find your venue ›

🏆 Become your municipality's ambassador

Ask at the counter, report the answer. Your municipality climbs in Belgium in figures.

🙋 I want to be an ambassador ›

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🤝 Sharing is caring. 565Belgische gemeenten na de fusies van 1/1/2025 (deelgemeenten en oude fusienamen niet meegeteld)
Bron: KBO-ondernemingsregister, gecanoniseerd met src/core/register/fusies.ts
Gemeten op 9/10/2026 municipalities mapped, 14 fats, 80,808 venues. Know the fat at your fry shop? Report it on the venue page.