The sugar content is different from the salt content. The air contains moisture. Cookies exposed to the air for a long time will absorb the moisture in the air and make them soft. Bread will harden after a long time because of the aging of starch.

Storage method of biscuits: after baking, cool the biscuits, put them in fresh-keeping bags or clean plastic bags, squeeze out the air, and seal them with small clips or sealers. Put the cooled biscuits into a sealed bag, let out air and tighten the seal. If you find signs of softening during storage, don't worry, put it on a baking tray, bake it in the oven for a few minutes, then take it out and cool it to restore the crispy taste.

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Precautions:

Try to buy cookies with low fat, low sugar and low calorie. Pay attention to the nutrition label on the package when buying, and don't choose varieties with high fat, high sugar and high calorie. The flour used to make cookies is generally refined white powder, which has low nutritional value. If milk, nuts, coarse grains or beans are added to the ingredients, the nutritional value of biscuits can be improved.

Generally, cookies are very dry. Moisture can make the starch in biscuits swell and make them easy to eat, thus controlling the weight. If you are worried that the calories of biscuits are too high, you can also make a pot of oolong tea or green tea to reduce the calories of biscuits, so that you are not afraid to eat too much.

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People's Daily Online-Cookies will become soft and bread will become hard overnight. What is the reason?