The chestnut freezing and preservation methods include direct freezing and cooking and then freezing. The details are as follows:

1. Direct freezing method: put the fresh chestnuts into clean water, wash them, and then dry the moisture on the surface to ensure that there is no moisture residue. Next, divide the dried chestnuts into several portions, put them into plastic bags, seal them, and put them in the refrigerator for freezing. Chestnuts preserved in this way can be kept frozen for half a year or more.

When it is time to eat, take out an appropriate amount of chestnuts and defrost them. After thawing, they can be cooked or cooked in other ways. This preservation method can maintain the fresh taste of chestnuts, which are sweet and soft.

2. Cooking and then freezing method: Compared with the direct freezing method, this method has an extra cooking step. Boil fresh chestnuts in boiling water until the skin cracks or can be peeled off easily. Then let the cooked chestnuts cool to ensure there is no moisture on the surface. Next, divide the cooled chestnuts into appropriate portions, put them into fresh-keeping bags and seal them, and put them in the refrigerator for freezing and storage. This storage method can extend the storage time of chestnuts, but there will be a certain gap in taste compared with fresh chestnuts.

Precautions for chestnut preservation

1. Choose fresh chestnuts: Before preserving chestnuts, make sure the chestnuts you buy are fresh, have smooth shells without damage, and are of moderate weight.

2. Clean chestnuts: Wash the purchased chestnuts in clean water to remove dirt and impurities on the surface.

3. Dry and dry: The cleaned chestnuts need to be dried before storage to ensure that the skin is dry and no moisture remains.

4. Pack and freeze: Divide the dried chestnuts into fresh-keeping bags, seal them well, and put them in the refrigerator for freezing and storage.

5. Thawing and cooking: When you need to eat, take out an appropriate amount of chestnuts to thaw, and then choose the cooking method according to your personal preference, such as boiling, roasting, steaming, etc.