What is a white layer growing on top of dried sweet potatoes dried at home is groundnut cream.

If dried sweet potatoes are left at room temperature, the sugar contained in the dried sweet potatoes will penetrate to the surface and form a white frost, which is called groundnut cream. The reason for the groundnut cream is exactly the same as the reason for the persimmon cake cream. This groundnut cream is not only sweet but also has many benefits for the human body.

Expansion:

Sweet potatoes are low in calories and quite filling, and are a good weight loss food, whether used as a staple or a side dish. Don't think that sweet potato sweet, it is recognized that it contains high sugar oh! Let's take a look at the sweet potato nutrition table. Every 100 grams of sweet potato contains only 0.2 grams of fat, is 1/4 of the rice. so sweet potato is low-calorie, low-fat food in the best.

In addition to this, sweet potatoes contain balanced nutrients. Such as vitamin A, B, C, fiber and potassium, iron, copper and other more than 10 kinds of trace elements, including fiber on the intestinal peristalsis can play a good role in stimulating the role of promoting excretion. At the same time, due to the fiber structure in the intestinal tract can not be absorbed, there is a special function of blocking sugar into fat.

Especially rich in lysine, and we usually eat rice, flour precisely lack of lysine. Therefore, nutritionists say sweet potato for the most balanced nutritional health food, but also the most ideal and spend little weight loss food.

At the same time, bulk dried sweet potatoes taste sweeter than individually packaged dried sweet potatoes, because factory-processed dried sweet potatoes are often made when the sweet potatoes are just ripe, the starch has not been fully converted to sugar. While bulk dried sweet potatoes are dried for a long time, the taste is sweeter.

Reference: Baidu Encyclopedia - Dried Sweet Potato