First, we can buy a cleaning product to remove oil stains. As for that product, the effect is good, so we need to choose the genuine product carefully.
Second, soak it in warm water first, then pour the detergent in a greasy place, brush it with a brush, and then dry it in the sun.
Third, if you can't get rid of the oil with detergent, you can also try laundry detergent.
Fourth, put a proper amount of alkali in the water (for steamed bread), then soak the apron and wash it with detergent.
Fifth, put a proper amount of baking soda in the water. If the apron is too oily, you can put more baking soda, soak the apron in soda water for a while, rub it for a while and clean it normally.
Sixth, if it is a white apron, put a bottle of 84 disinfectant in a basin of water, soak it for a while and clean it normally. You can't put too much disinfectant because it is corrosive. This method is not recommended.