1, you'd better not drink it.
Generally, products have a shelf life, which means that the manufacturer will be responsible for the food with a shelf life, and it is safe and reliable within the shelf life. Food beyond the shelf life does not mean that it is completely inedible, but food will deteriorate at any time due to environmental changes, and the quality of food can no longer be guaranteed. Food beyond the shelf life can be eaten without spoilage. However, because the shelf life has passed, soy milk powder may go bad. If eaten, it may cause discomfort such as diarrhea. You'd better not eat any more.
2. Decline in nutrition
Soymilk beyond the shelf life will lose a lot of nutrients, the amino acids in soy milk will change, the absorption of nutrients in soy milk will decrease, and other nutrients will also be lost. It is best to try to finish the food within the shelf life to ensure complete nutrition.
3. Bacterial pollution
After the shelf life of food, the resistance to bacterial contamination will decrease, and it may be spoiled by bacterial contamination. The deterioration of soybean milk is generally caking or moldy. If this happens, it must not be eaten, and some bacteria are invisible to the naked eye and cannot be completely killed by brewing with hot water. There are still health risks, and it is best not to eat after the shelf life.