Putting cooking oil down the drain can damage septic systems, government sewer systems, and the pipes in your home. I don’t know why I never heard of oil hardeners, but they have been available in Asia for years.
Once you are done cooking you add the hardening powder to hot oil, stir until dissolved and when the oil cools it hardens.
At that point just scoop the hardened oil out of the pan with a spatula and put it in your trash. Wipe out the pan with a paper towel and wash as usual.
An added bonus is that the hardener is a natural substance derived from oil and is not harmful to the environment. It’s made cleaning up much easier than when I was saving containers to dispose of oil rather than recycling them.
God bless,
Pam