Beans can be preserved by blanching. After blanching, dry the beans and put them into the fresh-keeping bag. Then squeeze out all the air in the bag and put them into the refrigerator for freezing. They can be preserved for a long time. If you want to store beans for a short time, you can put them in perforated plastic bags. For long-term storage, you only need to dry them. How to preserve beans 1. Blanch water
Clean the beans with water, and then blanch them directly in boiling water. The time should be controlled well, not too long. You only need to boil the pot once. When the water of beans is completely dried, put it into the fresh-keeping bag. However, squeeze out all the air in the fresh-keeping bag, and then seal it tightly to prevent air from entering. Put it into the refrigerator and freeze it.
2. Short term normal temperature storage
Directly put the beans into the plastic bag, cut a few holes in the plastic bag, put it in the shade, and sprinkle a little water on it every day. This method can save the beans for 3 days. During this period, it can keep the color crisp and tender, and at the same time, it will not lose too much water. However, it is still necessary to eat them as soon as possible.
3. Long term treatment
After cleaning the beans, put them in small pieces, blanch them in boiling water, take them out, then dry them in the sun and seal them with plastic bags. In this way, they can be preserved for a long time. However, avoid moisture, otherwise the beans are easy to grow insects. In this way, the preserved beans are also suitable for eating in winter.