1 After the raw chestnut matures, the water on the surface of the chestnut shell will automatically crack after being exposed to the sun for a few days, so it is easy to remove the shell.
2. Freeze the raw chestnut in the freezer of the refrigerator for two hours and take it out. Due to heat expansion and cold contraction, the fruit of the raw chestnut will be separated from the shell when it shrinks, so that the shell will crack when it is pinched by hand.
3. There is also a method of heat swelling and cold shrinkage, that is, the raw chestnut is boiled in boiling water for four or five minutes, and then immediately taken out and soaked in cold water for five minutes, so that the shell of the raw chestnut will be easily peeled off after it is separated from the pulp.
4. Boil the brackish water, soak the raw chestnut for five minutes, and then take it out. In this way, not only the shell of chestnut but also the skin inside will be easily peeled off with the shell.
Extended data:
Chestnut is a kind of dried fruit with high carbohydrate content, which can supply more heat energy to human body and help fat metabolism, and has the functions of benefiting qi, strengthening spleen and nourishing stomach and intestines.
Chestnut is rich in unsaturated fatty acids, vitamins and minerals, which can prevent and treat diseases such as hypertension, coronary heart disease, arteriosclerosis and osteoporosis, and is a nourishing good product for anti-aging and prolonging life.
Although the nutritional and health care value of chestnuts is high, they also need to be eaten properly. It is best to treat chestnuts as snacks between meals, or eat them in meals, rather than eating them in large quantities after meals. This is because chestnuts contain more starch, and it is easy to eat too many calories after meals, which is not conducive to maintaining weight.
When buying chestnuts, don't blindly pursue the white or golden color of the pulp. The golden yellow pulp may be chemically treated chestnuts. On the contrary, if the pulp is browned in the middle after frying or cooking, it is caused by the "browning reaction" of the enzymes contained in chestnuts. As long as the taste has not changed, it is harmless to the human body.
Baidu Encyclopedia-Chestnut