Black rice is a kind of rice that can be cooked or eaten. As food, it is rich in nutrients, rich in copper, manganese, zinc and other inorganic salts, but also rich in vitamin C, chlorophyll, anthocyanin, strong heart and other special ingredients. Used as a medicine, black rice can nourish yin and tonify the kidneys, improve eyesight, activate blood circulation, and invigorate the lungs to relieve tendons. It has a good alleviation effect on symptoms such as anemia with white hair, dizziness, and weakness in the waist and knees. Therefore, black rice is very popular in life. However, many people will find that black rice will fade after buying black rice. Is this normal?

First, black rice fade is a normal phenomenon

The fade of black rice is a normal phenomenon, because the appearance of black rice is black, and its surface layer contains water-soluble pigment, which is anthocyanin. Anthocyanins are easily dissolved in water and cause water discoloration after contact with water, so normal black rice will fade during the panning process. However, although the surface of the black rice is black, its rice core is white. If the outer surface of the black rice is scratched during the process of washing and the white rice core is exposed, everyone should not worry too much. This is also a normal phenomenon.

Second, how to identify the true and false black rice

Since the normal black rice will fade, then how can consumers identify the abnormal black rice on the market? Below, Xiao Bian will teach you how to distinguish whether black rice is normal or not.

1. Learn to see the luster and appearance of black rice. The normal black rice is shiny, and the size is relatively uniform. Black rice is not like rice, black rice rarely has broken rice, or there are cracks on rice grains, and it will not be infected by insects. Therefore, to identify whether the black rice is normal, from a pile of black rice, carefully observe their color and appearance on the line.

2, see the rice heart can also identify whether the black rice signs. Because the black rice's rice heart is generally pure white, the black rice that is unusual or colored is generally transparent, and there are even some other colors. Therefore, when screening black rice is normal, only need to scratch the surface of the black rice by hand, look inside the rice can be identified.

3, black rice will fade when panning, if the black rice washing water appears purple, or brown, such black rice is normal, because the anthocyanin is soluble in water, it will appear purple or brown. However, if the water for washing black rice is as black as ink, such black rice is generally not normal.

4. Because the anthocyanin will appear red in the acidic environment, a few drops of vinegar can be added to the water that is washed in the black rice. It can also be used to identify whether the black rice has been dyed. If you wash the water used for black rice, after the drop of vinegar, it becomes a rose red, the black rice is normal, if the water is still black, the black rice must be processed, this abnormal black rice is absolutely Can not eat.

We do not have to worry too much about the discolored black rice. The normal black rice will fade during the washing process. Want to identify the black rice is normal, can not just watch the black rice can not afford to fade, but should observe the black rice fade color dissolved in water is normal, if the black rice wash water like ink, such black rice are Dyeing is also abnormal.

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