How to Dispose of Cooking Grease Without Clogging Your Drains

Never pour cooking grease down the drain, even with hot water or dish soap. Let it cool, pour liquid oil into a sealed container and put it in the trash, and wipe solid fat out of pans with a paper towel before washing. LA County's sewer guidance asks residents not to pour fats, oils or grease down drains because they harden in pipes and cause blockages.

Grease goes down the drain as a liquid because it is warm. As it moves through the trap and along the kitchen branch line, it cools and clings to the pipe wall. The next batch sticks to the first. Food particles, rice and starch get trapped in it. Over months, the layer thickens until water can barely pass.

Hot water and soap only move the problem a few feet further along. The grease still cools somewhere, often in the building drain or the lateral, where it is harder to reach.

Grease does not stay in your line. What gets past your pipes reaches the public sewer mains, which LA County Public Works maintains for Rosemead. Grease buildup in mains is a common cause of public sewer blockages and overflows, which is why the county asks every household to keep it out.

A kitchen sink that drains slowly after heavy cooking, a rancid smell from the drain, gurgling when the dishwasher empties, or a provider's cable that comes back coated in grey or white paste are all signs. If the kitchen line has needed clearing more than once in a year, a cable may only be cutting a channel through the grease. That is when hydro jetting Rosemead is worth asking about.

A disposal chops food into smaller pieces, but it does not make grease go away. Fats, rice, noodles, coffee grounds and stringy peels all cause trouble further down the line. Use the disposal for small scraps only, and put everything else in the trash or the green waste bin.

After deep frying, there can be a lot of oil. Let it cool fully, strain it if you plan to reuse it, and store or dispose of it in a sealed container. Never pour it down a sink, toilet or storm drain.

Keep a clean can or jar with a lid next to the stove. After cooking, let the pan cool for a few minutes, pour the oil into the can and wipe the rest out with a paper towel. When the can is full, close it and put it in the trash. Do the same with the drippings from roasting pans and sheet trays. Scrape plates and bowls into the trash or green waste bin before rinsing, and keep a basket strainer in the sink at all times.

It sounds small, but grease is cumulative. A kitchen that sends a little grease down every day builds the same clog as one that sends a lot down once a week, just a little more slowly.

Restaurants are required to manage grease with traps or interceptors, but homes have no such device, so habits are the only protection. In homes where several families or generations cook every day, the kitchen line works especially hard, and a yearly check can make sense.

If the sink is already backing up, stop using it and the dishwasher. A provider can clear the line and, if grease keeps coming back, jet it clean. Homes near the Valley Boulevard Rosemead drain cleaning corridor see this problem often. For a single slow sink, read clogged drain repair Rosemead. Check the provider's license with the CSLB license check.