Autumn is a good time to eat sweet potatoes, especially in the northern autumn harvest, there will be many sweet potatoes, which can't be eaten all at once, and it will easily freeze when the weather gets colder and colder. Storing sweet potatoes in rural areas will have its own way, which is relatively simple, that is, dig a big hole, then put them all in, and then cover them with soil or grass, so that they can be preserved for a long time. So how can people in cities save sweet potatoes?

how to preserve sweet potatoes at home? Grandma: put it in the "big refrigerator" and it won't break for a year. The big refrigerator that Grandma talked about is actually not an electric refrigerator that we plug in, but an artificial cellar. In our local dialect, it is also called "potato hole", which, as the name implies, is specially built for sweet potato storage. Usually, there are two kinds of potato holes, one is horizontal, and the other is a small door, which has a hole in it, and some small holes can be dug horizontally to preserve the foreign ginger at home.

A lot of sweet potatoes can be piled up in the sweet potato cave. Whenever you want to eat, you can go to the cave to get some back, and then rinse it clean, just as fresh as you just dug it out of the ground. But many people don't have this condition at home, especially in the city, and it is even more impossible to have this kind of potato hole. How should we preserve it in small quantities?

It's hard to preserve sweet potatoes when it's cold. I'll teach you a trick. The more you put them, the sweeter they get, and they will be fresh after one year. In fact, from the potato hole I mentioned above, we can explore what conditions are needed for sweet potato preservation, which is also the foundation of sweet potato preservation.

first, sweet potatoes must be stored in a dry environment, and the temperature should not be too high or too low. In a hot and humid environment, sweet potatoes are easy to germinate and freeze in cold weather, so the environment must be dry, and when stored, it is very important not to touch water.

second: try to choose an environment without light, that is, a dark place. There will be no light in the potato hole all year round, and it is completely opaque, so if you want to keep the sweet potato for a long time, don't let it see the light.

third, with flowing air, sweet potato preservation also needs some air, which is the basis for sweet potato to grow sweeter. With flowing air, sweet potato can be preserved more easily.

In fact, it is not particularly difficult to meet the above conditions. To preserve sweet potatoes at home, dry them in the sun for a few hours, and then find a wooden box, which can also be replaced by a paper box, and put some plant ash. Remember that the box must be breathable, and put some old cotton wool around the sweet potato box to ensure that it is dry. After it is enclosed, the sweet potatoes can be protected from freezing.

It is relatively easy to preserve sweet potatoes in rural areas. If there are few batches at home, it is also possible to use the above method. The more sweet potatoes are put, the sweeter they are, and they are especially fresh after being preserved for one year.