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Why do you want to put some sand in fried sugar chestnuts?
Adding sand can make chestnuts heated evenly during frying.

Chestnuts are round and big. When frying in a pot, there is a big gap between chestnuts and chestnuts, and the heating is uneven, which is easy to cause some to burn and some to be immature. Putting sand and chestnuts in a pot to fry together is to use the principle that sand is easy to dissipate heat after being heated. The sand particles are very small and easy to contact with chestnuts, so chestnuts are fried quickly.

At the same time, hot sand can transfer heat to each chestnut, so that chestnuts will be evenly heated and will not be burnt or undercooked.

Extended data

nutritional ingredient

Chestnut, also known as chestnut, has the reputation of "king of dried fruits" and "ginseng fruit" abroad. Chestnuts not only contain a lot of starch, but also are rich in nutrients such as protein, fat and B vitamins. They are also high in calories and were used instead of dinner in ancient times. During the Spring and Autumn Period and the Warring States Period, planting chestnuts was very popular. Sweet chestnuts, as precious fruits since ancient times, are the best among dried fruits.

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