for print only
:: home > Education & Outreach

FOG: Fats, Oils & Grease

FOG stands for Fats, Oils and Grease three substances that shouldn't be washed down the drain.

Fat-clogged pipe

Fats, oils and grease are items used when cooking, or are the by-products of cooking, such as cooking oil, butter or leftover grease from cooking bacon or other meats.

How Should I Dispose of “FOG?”
After cooking, wait for the “FOG” to cool down. Then, simply scrape the leftover cooking fats into the trash or other container, such as an old metal coffee can or food scrap recycling bin. Never put fats, oils or grease down the drain.

Can’t I Just Wash “FOG” Down the Drain?
Never wash fats, oils or grease down the drain, even if you use hot water.

These items will build up over time and block sewer lines like the one to the right. Blocked sewer lines can cause raw sewage to backup into your home, and could lead to costly repair bills.

Raw sewage could also back up onto neighborhood streets and into storm drains, which drain to rivers and the ocean. Overflows can pose health and environmental hazards, in addition to being costly to repair.

Remember — keep your sewer lines “FOG”-free!