During the warranty period, the manufacturer of the product is responsible for the quality of the product that meets the relevant standards or explicitly guaranteed quality conditions. However, the shelf life is not the only criterion to identify whether the food has gone bad, and the food may go bad prematurely due to storage methods, environment and other problems.
The storage conditions of food are very important to the quality of food. The shelf life is usually determined according to the suitable storage conditions of this kind of food, such as the packaging of ordinary biscuits, and the integrity of food packaging is also an important standard to measure the quality of food. Food with defective packaging is easy to get wet or breed bacteria, and its safety is relatively low.
For opened food, its shelf life will also be shortened. Therefore, food should be eaten as soon as possible after opening to avoid mildew. Dairy products are prone to spoilage. If exposed to normal temperature, they will deteriorate within a few hours. For the special yogurt in the supermarket near the shelf life, don't buy it if you can't finish it within this period.
Extended data
After the shelf life, some foods can still be eaten from the safety point of view, but the quality may decline to some extent. For example, after the frozen food expires, the pathogenic bacteria may not exceed the standard, and eating it after cooking will not cause adverse reactions. However, due to the long storage time, the flavor and taste have changed, the taste is not fresh, the vitamin content has also decreased, and the fat may be slightly oxidized.
If the milk that has passed the shelf life is in the form of a thick and uneven solution, or has clots or flocs, it should be thrown away. In summer, even if it looks normal, try to cook it. If boiled, it will produce blood clots, indicating that bacteria exceed the standard and cannot be drunk.
Milk powder has no moisture, long shelf life and short expiration time. As long as there is no dark color, no impurities or foreign bodies visible to the naked eye, and no stale musty and spicy taste, it can be eaten. If it is only slightly caked, it can be used to make snacks or cook, and it can be used continuously by heating.
People's Network-Remember: You can't eat expired food!