To remove fat from soup when heating it up in a microwave oven, follow these steps:
Refrigerate the soup: Before heating the soup in the microwave, refrigerate it for a few hours or overnight. Cooling the soup allows the fat to solidify, making it easier to skim off.
Skim the fat: Once the soup has cooled and the fat has solidified on the surface, use a large spoon or a ladle to skim off the fat. Gently slide the spoon across the top of the soup to collect the solidified fat. You can also use a fat separator, which is a specialized kitchen tool designed to separate fat from liquids.
Microwave the de-fatted soup: After removing the solidified fat, you can proceed to heat up the de-fatted soup in the microwave oven.
Remember to use microwave-safe containers and cover the soup to prevent splattering while heating. Be cautious when handling hot containers and liquids from the microwave. If you don't have time to refrigerate the soup beforehand, you can still microwave it and carefully skim off any excess fat that rises to the top after heating.