"one rub and two look" to identify true and false black peanuts

Some people bought black peanut kernels several times more expensive than ordinary peanuts from the supermarket, but they faded in the face of water and suspected that they had bought dyed peanuts. In this regard, the relevant agricultural experts said that black peanuts do fade into the water, but it is understood that black peanuts are cultivated according to the genetic variation of peanuts, belonging to a kind of colored peanuts, also known as selenium-rich black peanuts, with a variety of nutrients needed by the human body, good taste and other characteristics as the selling point.

For whether the discoloration of black peanuts is due to dyeing, the reporter consulted Sun Jian, director of the Agriculture Bureau of Zhejiang Agricultural Department. Sun Jian said that the skin of black peanut kernels is purplish black because of its natural pigment, which is harmless to human health. Pigment is soluble in water, so black peanut kernels will fade when exposed to water, which is a normal phenomenon. But if the color fades seriously, the peanuts may have gone through post-processing.

How to judge whether the black peanut is true or false? Sun Jian said that one is to rub with hands, the black peanut pigment dissolves in water, but will not stick to the hands. Second, by looking at the shape of peanuts, black peanuts are slender than ordinary peanuts and have two tips; they can also peel off their skins and see that if they are dyed peanuts, peanut kernels will also be dyed black.

Consumers are advised to choose fresh black peanuts with shells. If you see cheap black peanuts in a small store, you should be careful. Sun Jian said.

Identify the true and false by one rub or two.