Refrigerator freezing method: after the chestnuts are cooked and cooled, put them in the refrigerator for two hours, so that the endothelium can be quickly peeled off and the chestnuts are intact.
Microwave heating method: cut the shell of the bought raw chestnuts with scissors and put them in a microwave oven for 30 seconds, and the endothelium and chestnut meat will automatically separate. Before using this method to remove the endothelium, the shell must be cut open, otherwise the microwave oven may malfunction.
Expansion due to heat and contraction due to cold: after the chestnuts are shelled, they are boiled in boiling water for 3-5 minutes, and then boiled in cold water for 3-5 minutes immediately after being taken out.
Sunlight exposure method: if raw chestnuts are exposed to the sun for a day, chestnuts will crack. At this time, whether eaten raw or cooked, it is easy to peel off the shell and endothelium of chestnuts. But chestnuts to be stored can't be dried, because dried chestnuts can't be kept for a long time.