1. Consumers should look for the "QS" mark when buying rice, because rice is the first product to implement the food quality and safety market access system. If the "QS" sign is not affixed (printed) on the outer packaging, this product will not be allowed to be sold in the market and will definitely be unqualified.

2, look at the luster, the normal black rice skin has luster, and the inferior black rice has no luster.

Step 3 look at the epidermis

Normal black rice can only pick off flaky things by hand, and picking off powdery things is dyed inferior black rice.

Step 4 Look at Mi Xin.

Scrape off all the skins of the rice grains and observe whether the rice grains are white. If it is not white, it is probably artificially dyed black rice.

Black rice dyed with rice has a uniform appearance, but the color of the dye will penetrate into the rice core.

Step 5 watch Taomi water

Normal black rice washing water is purplish red, and it is purplish red or near red after dilution. If the soaked water is like ink, it is still black after dilution, which is dyed inferior black rice.