Commercial Composting Partnerships
Some cities want food scraps out of the landfill and into a compost program. Used cooking oil usually does not belong in that bin. It is a fuel and feed ingredient, and a collector picks it up in its own container.
A restaurant can keep the streams apart: solid scraps in the organics bin, fryer oil in a sealed caddy, and drain grease in the trap. Mixing oil into the compost cart is how a divert program gets rejected at the gate.
Oil in a compost cart is a rejected load at many sites because used cooking oil is handled as a commodity, not as yard waste. The sealed caddy is the oil's container. The organics bin is for scraps. A compost partner and a grease collector can both serve the same kitchen if those containers stay separate.