The mackerel, also known as corrosive skin, is a traditional soybean food with a strong soybean scent and a unique and nutritious taste not available in other bean products. It is fertilized, luminous, rich in proteins and a variety of nutrients, and can be released in three to five hours with water bathing (summer winter). And so on and so forth, and so forth, and so forth, and so forth. However, kidney inflammation, incomplete kidney function, diabetes ketone acid poisoning and gout are not suitable for use. The fried bamboo can make soup stew, and the cooking pans are delicious。