The first trick is to look at the luster. Normal black rice has a shiny epidermis, while inferior black rice has no luster.

The second trick is to look at the surface. Normal black rice will be flaky when you pick it off with your hands. If it is powdery, it is inferior black rice.

The third trick is to look at Mi Xin. The center of normal black rice is white, while the center of ordinary rice is transparent and colorless. Although the appearance of black rice dyed with rice is relatively uniform, the color of the dye will penetrate into the heart of the rice.

The fourth trick is to soak rice in water. Normally the black rice soaking water is purple-red, and after dilution it is also purple-red or closer to red. If the soaked water looks like ink and is still black after dilution, this is fake black rice.