careful! Poisoning caused by drinking unripe soy milk

　　Do not drink unripe soy milk

　　Because raw soy milk contains saponins, trypsin inhibitors and vitamin A inhibitors, it also has a beany smell. Saponins are highly irritating to the gastrointestinal mucosa and can cause congestion, swelling and hemorrhagic inflammation, as well as nausea, vomiting, diarrhea and stomach ache and other symptoms, it can also inhibit proteases to cause toxic side effects such as goiter; trypsin inhibition is a protein in the body, which can selectively combine with trypsin to form a stable complex, thereby inactivating trypsin, inhibiting the process of protein hydrolysis into amino acids, hindering the digestion, absorption and utilization of dietary proteins, and reducing the nutritional value of soy milk; and vitamin A inhibitors can oxidize and destroy carotene.

　　In addition, raw soy milk is rich in protein, fat and sugar, which is ideal conditions for the growth of microorganisms. Therefore, the soy milk must be cooked thoroughly. When boiling soy milk, you must also remove the floating foam, and then maintain the boil over a slow fire for about 5 minutes so that the harmful substances are completely decomposed and destroyed, and the microorganisms are killed.

　　How to make soy milk yourself:

　　If you want to make full use of the protein in soybeans, you must eliminate the adverse effects of trypsin inhibitors through full soaking, grinding, filtering, heating and other processing methods. When raw soy milk is heated to 80°C to 90°C, a large amount of white foam will appear. Many people mistakenly think that the soy milk has been cooked at this time, but in fact this is a "false boiling" phenomenon. The temperature at this time cannot destroy the saponins in the soy milk. The correct way to cook soy milk is to continue heating it for 3 to 5 minutes after the "false boiling" phenomenon occurs to make the foam completely disappear.

　　Some people cook the soy milk several times to be on the safe side. This removes harmful substances in the soy milk, but also causes the loss of nutrients. Therefore, the soy milk must be cooked just right and the heating time must be controlled.

　　Special reminder: Although soy milk is good, it should not be consumed in excess. Drinking too much soy milk at one time can easily cause protein indigestion and symptoms such as bloating and diarrhea.