Short-term storage: put the beans directly in a fresh-keeping bag, seal them and put them in a cool place. If the temperature is too high, you can choose to keep it fresh and refrigerated, directly put it in a plastic bag and seal it, and put it in a freezer for refrigeration, which can generally be kept for about a week.
Frozen preservation: fresh beans are cut from beginning to end, and then broken into small pieces, not in places with insect eyes; Boil the water in the pot, add 1 tablespoon salt after the water boils, then blanch the beans and take them out two minutes later; Soak in cold water, then take out and drain; Finally, put it in a fresh-keeping bag, squeeze out the excess air in the bag, put as much as you eat at a time, open it when it is cooked too much, and finally put it in the refrigerator for freezing.
Beans are usually stored in plastic bags or fresh-keeping bags for 5 to 7 days, but after a long time, brown spots will gradually appear, which is not beautiful. If you want to keep it longer, you'd better wash it, blanch it with salt water to drain it, and then put it in the refrigerator for freezing. But remember to drain the water so that the frozen beans won't stick together.
Sun-dried preservation: fresh beans are removed from the head and tail, and then all the beans with insect eyes are picked out and pinched off; Boil the water, cover it and let it boil. After boiling, add all the beans, blanch for one minute, and then take them out. Dry it. It can be kept in a cool and dry place for a long time, even for a year.