When buying soybean milk, you should have a pair of eyes to distinguish what is high-quality soybean milk and what is inferior soybean milk. Good soybean milk should have a strong bean flavor, high concentration, smooth taste, and a layer of oil skin on the surface when it is slightly cold; Inferior soybean milk is thin, with low nutrient content, poor homogenization effect and poor taste. After a long period of cooking, the bean smell in soybean milk will be relatively reduced, but the cooked soybean milk will inevitably have some bean smell. If you are particularly concerned, you can make salty or sweet soybean milk according to your own taste. Shanghainese are used to putting a little seaweed, shrimp skin, vegetable leaves and other substances in soybean milk, which is very nutritious. If you like sweetness, you can add some sugar or honey to adjust the taste. When drinking soybean milk, it is best to mix dry and thin. Protein in soybean milk can be better absorbed by human body under the action of starchy food.

If you don't like to drink the bought soybean milk, you can buy a soymilk machine and make delicious and hot fresh soybean milk at home. In the process of homemade soybean milk, other kinds of beans such as mung beans and red beans can also be added to soybeans. Soymilk made from these mixed beans has various nutrients that complement each other and is more conducive to health.

Although soybean milk is rich in nutrition, some people are not suitable for drinking.

Patients with renal failure need a low-protein diet, while beans and their products contain a lot of protein, and their metabolites will also increase the burden on the kidneys, so drink less soy milk. Kidney calculi patients should not eat soybean milk, because oxalate in beans can combine with calcium in the kidney to form stones, which will aggravate the symptoms of kidney calculi.

People with acute gastritis and chronic superficial gastritis, if they drink soybean milk, can easily stimulate the stomach, leading to excessive gastric acid secretion, thus aggravating the condition. It is best for patients with gastric ulcer to drink less soybean milk, because oligosaccharides in beans can cause belching, bowel sounds, abdominal distension and other symptoms.

The gastrointestinal function of infants within 6 months is not perfect, so it is best not to drink soy milk. Patients with gout or renal insufficiency are limited by the demand of protein, so it is not advisable to drink a lot of soybean milk.

In addition, during the metabolism of soybean milk in vivo, nucleic acid and uric acid will be produced in cells, so patients with hyperuricemia can't drink soybean milk.