In addition to vitamin C and sugar, pineapple pulp also contains many organic acids, such as malic acid and citric acid, and also contains a kind of pineapple enzyme, which can decompose protein. If we don't soak in salt water first, this enzyme will stimulate the young epidermis of our oral mucosa and lips, making us tingle.

Salt can inhibit the activity of pineapple enzyme. Therefore, when we eat fresh pineapple, it is best to soak it in salt water for a period of time, which can inhibit the stimulation of pineapple enzyme on our oral mucosa and lips, and at the same time feel that pineapple is sweeter.

Mushroom is a protease, which can decompose protein. Therefore, a small amount of food can stimulate appetite, but excessive consumption is harmful to human body and will cause gastrointestinal diseases.