Spinach is a typical green leafy vegetable. The quality of its food drops rapidly during storage, mainly due to dehydration, chlorosis, rot, and rot. It only has a shelf life of about 10 days in a vegetable bank. Because spinach can tolerate the low temperature of -9°C, it generally adopts the preservation method of refrigerated plus plastic film open packaging, thereby effectively suppressing the loss of moisture and significantly prolonging the preservation period. The specific steps are as follows: 1. Harvest timely. The stored spinach should be harvested when the temperature is relatively low in the evening, and the collected spinach is neatly packed in a vegetable basket and covered with a wet sack. If it is not convenient to transport, it can be used overnight in a vegetable garden. To reduce the temperature of spinach. 2. Organize and pack. Remove yellow leaves, mechanical damage, spinach that is too old or too tender, choose spinach that is basically the same in size and maturity, and grade it according to the size of each leeks. Use food-grade leafy plastic film fresh-keeping bags (such as the leafy vegetable plastic film fresh-keeping bags produced by the National Agricultural Products Storage Center, and the high-density polyethylene plastic film bags developed by the Naval Medical Research Institute), and classify spinach into plastic. Inside the bag, each bag is about 3kg. The plastic bag is best not sealed so that high humidity conditions can be created and maintained, thereby reducing water loss from spinach. 3. Storage environment control. The suitable storage temperature of spinach is generally controlled at about 2°C. 2 °C low temperature environment can significantly inhibit the water loss of leafy vegetables, thus maintaining the flexibility and luster of leafy vegetables, reducing the membrane permeability of leafy vegetables, inhibiting the degradation of chlorophyll, slowing chlorotic chlorosis, low temperature can also inhibit microorganisms Reproduction. Tests have shown that storage of spinach with unsealed plastic wrap can be stored for up to 63 days in a low temperature environment at 2°C.
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