USED COOKING OIL
Used cooking oil is commonly called UCO or WCO (waste cooking oil), this is purified oils and fats of plant and animal origin. These have been used by restaurants, catering facilities and kitchens to cook food for human consumption. They are wastes as they are no longer fit for that purpose and are subsequently used as either feedstock for the production of biodiesel as fuel for automotive vehicles and heating or as a direct fuel. The use of UCO for biodiesel offers a genuinely sustainable outlet for a problematic waste product and one with the potential to offer significant GHG savings