Fix Rainbow-Stained Pans, a Crusty Microwave, and Dishwasher-Dulled Aluminum With Stuff Already in Your Kitchen
A splash of white vinegar (or steel wool for anything stubborn) clears the rainbow heat-tint off a stainless pan, a squeezed lemon in a bowl of water steamed in the microwave loosens crusted-on splatter, and a cream-of-tartar paste undoes the gray oxidation a dishwasher leaves on aluminum cookware.