What you'll need:
A damp cloth
Baking soda
White vinegar
Water
A spray bottle
A plastic spatula
Rubber gloves
First, remove all removable parts from the oven. Mix half a glass of baking soda with water to form a paste. With gloves on, apply this paste to the oven's interior, focusing on greasy areas. Leave it overnight for best results.
The next day, wipe off the paste with a damp cloth. For stubborn residues, use a plastic spatula. Finally, spray white vinegar on the walls, wait a few minutes, then wipe off with a damp cloth. Repeat with a water and vinegar solution until the oven is sparkling clean. Replace the racks and any other items.
Regular cleaning of the oven is recommended to prevent hard-to-remove grease build-up. With these methods, keeping your oven clean becomes a much simpler task.