Used cooking oil from restaurants, hotels, catering and food factories is a raw material for biodiesel and other bio-based products. It is bought by licensed collectors, biodiesel producers and traders.
The price depends on quality: the free fatty acid content, water, food particles and contamination with other liquids. Steady volumes from one source are worth more than occasional small amounts, and buyers usually want regular collection.
Before you offer it:
- let the oil cool, filter out food residue and store it in closed containers;
- keep water, cleaning agents and other liquids out;
- know how much you produce per week or month and how collection can be organised.
On ReWasteHub, post a Sale listing in Organic & Agricultural → Other and write "used cooking oil" with the volume and frequency in the description. Collectors and processors contact you directly, and price, collection schedule and any documents are agreed between your companies. Check the local rules for collecting and transporting used cooking oil.