If you are using microwave oven you just heat up your food at high power at micro mode especially if the food is made up of wet ingredients. You must use grill mode if your food is made from frying, toasted, or something from grilled food or dry food. If you use the micro move in toasted or fried chicken for example, it will become chewy or dense it would not be the same after all. If you use grill mode in soap base food, it might harden your food. So, use it base on the food you want to heat up. Base for soap base really is on top of the plated oven and put it in a pot to heat it up. For pasta made food, use micro mode when heating it up from 1 minute up to half a minute. ifyou heat it up more than it would be hotter, you don't want your food to be hotter before you eat it.