The microwave gets dirty quickly. Many dishes, when heated, splash over the walls of the oven. If you don’t want to use chemicals you can clean the oven with natural ingredients. Here’s what you need to do.

Baking soda
Dissolve 3-4 tablespoons of baking soda in a bowl of water and add the bowl in the microwave. Start the oven to high power for 3 to 4 minutes.

The water turns into vapor and falls on the microwave walls, dissolving the grease. All you have to do next is to wipe the microwave walls with a clean cloth. If necessary, repeat the process until all dirt traces disappears.

Lemons
The microwave can be cleaned very easily with lemon. All you have to do is cut a lemon in slice and add it in a bowl with water. Put the bowl with water in the microwave, and start it at high power for 5 minutes.
All you have to do next is to clear the microwave walls with a clean cloth or a paper towel.