answer:
rice cooker
Use only standard kitchen detergent with a soft sponge or cloth rinse. The parts thoroughly any remaining detergent may result in deterioration or discoloration.
If you've been neglecting your rice cooker for some time and have brown, burnt on stuff on the heating element that scrubbing with a kitchen sponge will not budge, try scraping it off very gently with a very fine sandpaper or fine mesh steel wool.
pressure cooker
Wash with hot water, a cloth and washing up liquid
Fill with warm water and washing up liquid, leave to soak for up to two hours
hope it helps ^^
