After drying the sweet potatoes, put them in a cool and dry place for a few days to cover up the white frost. Be careful to avoid moisture and prevent mold. The reason why dried sweet potatoes develop white frost is the same as the frost on persimmons. Sweet potatoes are rich in sugar. After being left for a long time, these sugars will penetrate into the surface of the sweet potatoes and form a layer of frost. The color is white, which makes people look more attractive. Have appetite.

How to cover the white frost after drying sweet potatoes

Dried sweet potatoes are made by steaming and peeling sweet potatoes, pressing and baking them. They are chewy. Strong, sweet taste, long shelf life, loved by consumers. After buying dried sweet potatoes, you will find a layer of white frost on them. This is not caused by rot, but the frost that has been covered up. After the sweet potatoes have it, The dry flavor will be richer.

If you make your own dried sweet potatoes and want to cover up the white frost after making them, you only need to dry them in a dry and ventilated place for a period of time. Dried sweet potatoes are rich in sugar and will last a long time. After that, the powdered sugar will penetrate into the surface and form white frost.

The white frost on dried sweet potatoes is actually the same as the frost on dried persimmons. It can be eaten normally and safely, but you must also distinguish whether it is white frost or mold. If dried sweet potatoes are not stored properly, they will become wet. It is prone to mold and deterioration. At this time, white mold will grow on the surface. You cannot continue to eat it at this time, otherwise it will be harmful to your health.