first, cool down and refrigerate. Fresh chestnuts can be cleaned and put outside, dried in the sun, and then packed in fresh-keeping bags or plastic wrap. And seal the bag mouth and put it in the refrigerator for refrigeration.

second, ventilation preservation. Fresh chestnuts can be dried in a relatively ventilated environment, and a cloth bag with good air permeability can be found after two days, and chestnuts can be put into the bag. Just put the cloth bag in a cool place.

third, the jars are preserved. Chestnuts can be stored in some ceramic pots.

Fourth, sand and gravel are mixed. After the fresh chestnuts are dried in the sun, the ratio of sand to chestnuts is 3:1, so that they will be well preserved after mixing, and then a small amount of water will be sprinkled on the surface of yellow sand, and the effect will be better.

5. spread in the sun for preservation. Just put it in a ventilated and dry place.

6. sawdust mixing. It's more like mixing with sand and stone. It is also mixed and put in a cool, ventilated and dark place.