Yellow Grease

The Grease Company

#1 Used Cooking Oil Collection company in California

Commercial kitchens generate a substantial quantity of used cooking oil and fat every day. Those used oils must be dealt with in the proper fashion and therefore disposed of on a regular basis in order to preserve operation and meet municipality regulations.

Grease traps or interceptors are used in restaurants to capture these FOG (fat, oil, grease) elements, preventing them from congealing in pipes and causing the sewer system to overflow. The grease collected from these kitchens is classified into two types: yellow grease and brown grease.

What is Yellow Grease?

Yellow grease usually refers to leftover cooking oil from deep fat fryers and industrial-sized griddles. When it is time to clean the fryers, the leftover oil is dumped into the restaurant grease collection container, where it cools and congeals before being recycled. It is called a “clean” oil since the food it comes into touch with is either fresh or frozen, eliminating the possibility of contamination.

Recycled yellow grease is mostly used to feed cattle, but it is also used in the production of soap, cosmetics, detergents, rubber, and some types of apparel. The most important and most popular product that yellow grease can be recycled into is biodiesel – a perfect sustainable alternative for petroleum-based fuel that leaves much less carbon footprint.

Difference between yellow grease and brown grease

Brown grease is a term used to describe the FOG materials collected in grease traps or waste traps. These receptacles are intended to capture FOGs before they infect the remainder of the sewage line. Because waste traps collect everything that is washed down a business drain, the grease mixes with decaying food and unclean water, making recycling dangerous and unhygienic.

Brown grease is often pumped out of waste traps and disposed of in landfills or burnt. Brown grease is hardly used in recycling into usable goods and has no value. It is much more rotten and considered a complete waste.

Brown grease is simply the congealed fat, oil, grease, and solids – or FOG – that gather in a grease trap, on the other hand, yellow grease is the residual cooking oil from big fryers and griddles.

Yellow grease offers various advantages over brown grease, including:

  • Bacteria from raw or decomposing food are less likely to infect it.
  • It contains little particulates and other non-oil components.
  • Because it is replenished more regularly, it is fresher and less solidified.
  • It’s largely pure oil, not a blend of FOG.

All of these characteristics combine to make yellow grease a purer and “cleaner” grease type. It can be recycled into various useful and valuable products including clean-burning biodiesel.

Yellow grease as Biofuel

Biodiesel is a renewable source of energy that can be used in any engine as an alternative to petroleum based diesel. It is much more flexible, and easy to use. Biofuel is more cleaner and less harmful than other options. The fuel emits 75% less pollution and carbon footprint than petroleum.

Surprisingly, this highly sustainable fuel is a product of recycling. Yellow grease is one of the main feedstock in biodiesel production industry, owing in part to its lower carbon intensity as a recycled product. Yellow grease-based biodiesel has several advantages, including:

  • Waste reduction
  • Improved performance
  • Emissions and particles are reduced
  • Increased storage safety
Yellow Grease buyer in California

Food establishments in California produce yellow grease and used cooking oil in abundant amounts every day. But what to do with this much UCOs? How to dispose of used cooking oil?

Did you know? You can actually get paid for handing over your waste cooking oil, yellow grease, or expired food-grade cooking oil to a licensed IKG hauler or UCO collector. The price of used oil is determined by the demand for biofuel.

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