Never use strong harmful and unsafe detergents. With the Volcano Master, all you need is water and vinegar to make a natural, environmentally friendly, non-toxic cleaner. Erupting Volcano has a smart design, using the holes on the top to distribute a cleaning solvent. Let Volcano run on high for 7 minutes, and purifying steam comes out of the holes under high temperature to soften microwave dirt and stains. All you need, then is to wipe away the dirt with sponge. You can even add a few drops of lemon extract for a great smelling kitchen, as well as a clean microwave.