Yellow Grease Versus Brown Grease and How it Affects Recycling

If you're interested in helping the environment and making some extra money by recycling your restaurant's waste grease, you'll need to know the difference between yellow grease and brown grease — this affects their suitability for recycling. To learn more about the types of waste grease in restaurants, read on. Yellow Grease Yellow grease primarily comes from the vegetable oil that restaurants use in their deep-fryers. When the oil gets old and needs to be changed in order to avoid imparting off-flavors to fried food, it's placed into a waste oil canister.