the little plastic sheet inside the microwave is slowly peeling off, its just a little plastic sheet, is it dangerous?
When a microwave degrades it is time to get a new one..When plastic sheeting peels away from the chasis there is likley to be metal behind the sheet..The plastic often acts as a shield and will not attract the microwave frequency.. You may develope a hot spot and cause damage and even create fire.. Do not use is my reccommrndation..