Yellow Grease

Yellow grease is a rendered commodity made in the rendering trade, often from used cooking oil and sometimes blended with animal fat. Buyers watch free fatty acids, moisture, impurities, and unsaponifiables. It is cleaner and more specified than brown grease from a trap.

The posts define yellow grease, list common uses, follow it from used cooking oil, record historical prices, compare it with choice white grease prices, and describe it as a biodiesel feedstock. A historical price is a record. It is not today's quote.

GREASE.ORG picks up the used cooking oil that can become this grade. Read the definition before you use the word, and do not call trap waste yellow grease.