Wipe the inside and outside in the microwave that has a sponge. Dampen a sponge and "Prepare dinner" it for 2 minutes. This tends to loosen caked-on material inside the microwave. About two minutes after the timer on the microwave goes off, retrieve the sponge and remove the rotating plate. https://paxton0nxfn.ampedpages.com/details-fiction-and-how-to-clean-houses-in-jubail-58731312