What to do with used vegetable oil?

In terms of health care, it is recommended that oil has only one use because frequent overheating produces toxic substances for humans, so sooner or later some of the used oil has to be discarded, and it is commonly emptied into the drain or mixed with household garbage.

What to do with used vegetable oil?
How do we dispose of used vegetable oil? Photo by Edgar Castrejon / Unsplash