Skip to content

Don’t Dump Your FOG Down the Sink!

With the holiday season approaching, many people will be cooking up delicious meals to feed their family and friends. What does yummy food have to do with FOG?  FOG stands for  fats, oils, and grease. Just like grease clogs your arteries, when you dump it down the sink it clogs the County’s arteries–the sewer system. 

This doesn’t just apply to large amounts of FOG, like the leftover oil from your deep fried turkey.

When any amount of cooking oil, butter, shortening or even heavy sauces  are dumped into your kitchen sink, it accumulates inside the sewer pipes making it difficult for wastewater to flow to the wastewater treatment plant. This includes wastewater draining from toilets and showers. When wastewater can’t make its way through the sewer pipes, it can overflow into your home, streets, lawns, and stormdrains, eventually making its way to the ocean. Not how you want your holidays to end!

Instead of dumping FOG down the sink, collect your used cooking oil for proper disposal at a local collection facility. To find the closest drop off location, check out our One-Stop Recycling Resource,

A few common myths about FOG:

Myth: Wash grease with dish soap.
Fact: Even though soap breaks up grease, it loses its effectiveness downstream, allowing grease to solidify on the pipe walls.

Myth: Running hot tap water will help grease float in the sewer pipe.
Fact: Running hot tap water will NOT help grease float through the sewer pipe because the water will eventually cool as it flows through the pipe and the grease will become solid again.

Myth: Pour cooking oil at room temperature.
Fact: Cooking oil such as canola and olive float on water and adhere to the sewer pipes. It is best to  avoid pouring oil down the drain altogether to avoid sewage problems.


  1. There are generally locations that take used cooking oil. Look around or advertise on Craigslist. It has uses as fuel and a feedstock for biodiesel and soap making. Often it can be reused for cooking if it’s filtered. I know Ocotillo Wells SVRA takes donations for use with their diesel vehicle if you’re frying in the desert or happen to be driving through.

  2. Thank you, those are great suggestions!

Comments are closed for this article!