1, you can put it for about 6- 12 hours. The temperature is high in summer. Usually, after 6 hours, jiaozi may be smelly, soft and shapeless. When the temperature is low in winter, the reproduction speed of bacteria is slow, and it can last about 12 hours at room temperature.

2. When buying jiaozi, you should open the packaging bag or put it in a container and store it in a ventilated and low-temperature place, preferably for no more than 24 hours. Under special circumstances, it can be stored in the refrigerator properly, not frozen, and the shorter the storage time, the better, not more than 7 days.

3. The shelf life of quick-frozen dumplings is generally one year, but there is a temperature threshold: below-18℃. The industry standard of quick-frozen dumplings issued by the Ministry of Commerce also stipulates that quick-frozen dumplings should be stored at the temperature of-65438 08℃ and below, and the temperature fluctuation should be controlled within plus or minus 2℃.