You should never pour cooking oil down the sink or toilet; instead, cool it, store it safely, then either recycle or throw it away in the trash once contained.

Quick Scoop

1. First rule: never down the drain

Used cooking oil can clog your pipes and even cause big sewer blockages in your city because it solidifies as it cools and sticks to pipes.

Even small, repeated amounts down the sink can slowly build up, leading to bad smells, backups, and expensive plumber visits.

2. Simple ways to deal with small amounts

For a thin film of oil in a pan (like after frying eggs):

  • Let the pan cool a bit.
  • Wipe out the oil with paper towels or an old cloth.
  • Throw the oily paper/cloth in the trash or food waste bin if accepted.

This keeps oil out of your pipes and makes the pan easier to wash.

3. What to do with larger amounts

Option A – Recycle it

  • Let the oil cool completely.
  • Strain out food bits through a sieve or fine mesh.
  • Pour it into a sturdy container (like a glass jar or bottle with a lid).
  • When full, take it to a local recycling center or collection point that accepts used cooking oil, where it can be turned into biodiesel or other products.

Many places accept used cooking oil at household recycling centres, and some areas even have pickup services or special tanks for it.

Option B – Solidify and bin it

If you don’t have oil recycling nearby:

  • Let the oil cool.
  • Either:
    • Mix in an oil-solidifier product (plant-based flakes that make it gel into a block), then scrape it out and toss it in the trash or green waste where allowed.
* Or pour cooled oil into a sealed container (old bottle, can, or jar), then put that container in your general waste bin.

Forum users often freeze cans or jars of used oil before putting them in the trash to prevent leaks.

4. A few creative reuses (if the oil is still decent)

If the oil isn’t burnt and was used for mild cooking, some people:

  • Reuse it once or twice for similar frying (e.g., same type of food) after straining out crumbs.
  • In more specialized setups, send or sell it to services that turn it into biodiesel or industrial products.

Used cooking oil can be repurposed into renewable fuel, animal feed components, or compost additives in controlled systems, but this is usually done by professional recyclers rather than at home.

5. Quick do’s and don’ts (2020s best practice)

  • Do: let oil cool fully before handling.
  • Do: wipe small amounts with paper towels and trash them.
  • Do: store larger amounts in a sealed container and take to an oil recycling point if you have one.
  • Do: use solidifying products or freezing if you must bin it in household trash.
  • Don’t: pour any amount of oil down the sink or garbage disposal.
  • Don’t: pour hot oil into thin plastic; it can warp or leak.

At the bottom of your post, you can add:

Information gathered from public forums or data available on the internet and portrayed here.

This matches current guidance and forum habits around what to do with cooking oil, while keeping the tone practical and environmentally aware.