1, blood glutinous rice blood glutinous rice is rice with purple seed coat. Because rice is waxy, it is called blood glutinous rice. After the natural blood glutinous rice is soaked in warm water, the red pigment in the seed coat is slowly dissolved by the aqueous solution, and a purple-red aqueous solution will gradually appear. As time goes on, the red color becomes stronger and stronger.

After cooking, the red seed coat will be separated from the embryo (rice grain). Fake blood glutinous rice is made of inferior rice and dyed with purple pigment. The most obvious difference is that after soaking in water, the water quality turns red faster than the genuine blood glutinous rice. After washing several times, the original shape of white rice will be revealed, and the red seed coat will not appear after cooking.

2. Black rice Black rice is a kind of rice which can be used for both medicine and food. It has good rice quality and is a characteristic variety of Gramineae rice formed by long-term cultivation. There are two kinds of grain types: indica rice and japonica rice, and the grain quality is divided into waxy and non-waxy.

Brown rice is black or dark brown. The color and appearance of black rice. Generally, black rice has luster, uniform particle size, less broken rice and cracked waist (with cracks on the particles), no moth-eaten and no impurities. Inferior inferior black rice has dim color, uneven particle size, poor plumpness, more broken rice, insects and caking.

How to distinguish blood glutinous rice

1, first look at the gloss to identify the true and false blood glutinous rice, the normal blood glutinous rice skin is shiny, and the inferior blood glutinous rice is not shiny.

2, choose glutinous rice depends on the epidermis, normal blood glutinous rice will fade, but not like oil Redmi hand dyed red. At the same time, normal blood glutinous rice is sliced by hand, and if it is powdery, it is inferior blood glutinous rice.

3. Look at the soaked rice soup. Normal blood glutinous rice soaking water is purplish red, and it is purplish red or reddish after dilution. If the soaked water is bright red after being diluted like red ink, it is fake blood glutinous rice.

4. Smell the smell, take a small amount of blood glutinous rice in your hand, exhale hot air into the blood glutinous rice, and then smell the smell immediately. High-quality blood glutinous rice has normal flavor and no other peculiar smell. What smells bad is inferior and inferior blood glutinous rice.