Getting onion/garlic smell out of rice cooker
Nothing's penetrated the teflon, what's happened here is that you haven't got all the fat off, garlic smell is fat soluble so it's remaining with a small film still on the pot. Put some dish soap right into it, then rub it all over the insert with damp fingers, then rinse, that should get rid of the fat. Sometimes washing with soapy water doesn't get rid of it all; the fat floats to the top of the water and if there's not enough soap you end up getting it right back on when you pull the pot out.