1, fresh frozen preservation method. Remove the hard shell of fresh broad beans, clean them and store them in the freezing area of refrigerator at -30~-35℃. After quick freezing for 4 hours, storage at-65438 08℃ can inhibit the growth and reproduction of microorganisms and the activity of enzymes, so that broad beans can be preserved for a long time.

2. Semi-cooked frozen preservation method. Clean fresh broad beans, boil them in boiling water until they are half cooked, take them out, add a little salt, dry them with a dustpan, and store them in the refrigerator at -20~-25℃.

3. Dry and frozen storage method. Clean fresh kidney beans, dry them in a ventilated and dry place, seal them with plastic wrap after drying, and store them in the freezing area of refrigerator, where the temperature is about -20℃.

4. Salting and frozen storage methods. Clean fresh kidney beans, put them into a pot, add appropriate amount of salt, stir them evenly, and store them in the freezing area of the refrigerator, where the temperature is about -25℃.