The first thing to consider is if it's safe to pour your used cooking oil or fat down the drain. The answer is generally no, as this can lead to blockages in your plumbing that can be difficult and expensive to fix. If you do choose to pour them down the sink, use hot water and detergent as a preventative measure as this will help break up the fat particles before they reach the pipes.
Alternatively, you could take advantage of a local recycling program or look into other sustainable ways you can compost your cooking oils or fats. Some recycling centers also accept used cooking oil which is then converted into biodiesel fuel, so look out for these kinds of programs in your area!
Finally, it is important not to pour large amounts of oil down the sink at once as this can block your pipes more easily than when the oil is spread out over a longer period.
If done properly, disposing of cooking oil and fat doesn't have to be complicated or expensive. Plus when you recycle your used grease instead of throwing it away, you are helping reduce pollution and contributing towards a cleaner environment – something we could all benefit from!