If the yogurt clumps, it does not necessarily mean it is bad. If the room temperature is too low, the yogurt will clump. In addition, refer to the retention period. Within the retention period, it means the yogurt is not spoiled.

Lactic acid bacteria like relatively low temperatures, and the suitable temperature range for survival is relatively narrow. Generally speaking, temperatures between 2 degrees Celsius and 10 degrees Celsius are more suitable for active bacteria to survive. But in most cases, the room temperature exceeds this temperature range, or even one or two times higher.

So, when buying yogurt, buy yogurt that is kept in the refrigerator, and be careful not to freeze it. And after buying it, put it in the refrigerator and freezer at home as soon as possible, and keep the temperature at 4 or 5 degrees Celsius. This range is more suitable for the survival conditions of lactic acid bacteria.

If the interval is relatively long, for example, if it is forgotten in the trunk of the car for several hours and not taken home, the lactobacilli at this time have actually expired.

Extended information:

How to store yogurt:

Storing yogurt at room temperature not only fails to preserve nutrients, but may also harm health. Experts remind that storage at room temperature will greatly shorten the shelf life of yogurt, so it must be stored refrigerated.

Because yogurt contains active lactic acid bacteria, it helps digestion. The calcium and phosphorus in yogurt are also more easily absorbed by the body. Drinking yogurt will not cause bloating, gas or diarrhea. Therefore, yogurt needs to be refrigerated to control the activity of lactic acid bacteria inside and make it stable. The shelf life is about two to three weeks at a temperature between 2 degrees Celsius and 6 degrees Celsius.

However, if placed at room temperature, the activity of lactic acid bacteria will be greatly enhanced due to high temperature, and it will usually reach its peak within two or three days. At this time, the taste of yogurt will show abnormal acidity, that is, it will taste very sour. . After that, the acidity will gradually decrease, but at the same time, the yogurt will also spoil quickly.

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