Nothing in your kitchen, we literally mean nothing, is safe from grease stains. These grease stains can attack almost any accessory or appliance within your kitchen and you may end up regretting not cleaning the soot when it first appeared. Even the wood on your cabinet doors can fall victim to this grease and soot, which is why stains start to develop on them over a period of time.
Don't stress if you see the soot, because it can be cleared. However, the procedure over here is long and there is no simple hack to it. You need to start by scrubbing the cabinet doors with baking soda and lemon. Once you are done with the scrubbing, rub some dish soap on it to make the door repel all kinds of grease on it. Dish soap is a good way to clean the grease from any substance.