Wash with a bit of soda and detergent.
The main dirt on the apron is oil stain, followed by seasoning and vegetable soup.
First, oil stains are hardly soluble in water, but soda water has a strong decomposition effect on oil stains. Use thicker soda water to clean the oil stains on the apron
Second, if there are still spices, vegetable soup and other unwashed on the apron, you can wash it again with detergent.