1. How to distinguish "plastic rice":

(1) Mashing method: a little rice is ground in a mortar, and if the rice flour is white, it is normal rice; If the color is yellow, there may be a problem.

(2) Combustion method: Everyone knows the smell of burnt plastic. So, you can try burning rice with a lighter. If it can ignite and smell of burnt plastic, it is fake rice.

(3) Water washing method: Take a cup of clean water, pour a spoonful of rice, and then stir. If the rice grains sink to the bottom, there is no problem. If rice grains float on the water, it means fake rice.

(4) Fungal method: Boil the rice grains and leave them at high temperature for two to three days. If the rice is not moldy, it means it is fake rice. Because plastics will not be moldy due to changes in temperature and humidity.

(5) Cooking method: When cooking, observe whether there will be a thick layer of rice on the water surface. If so, it can be judged as plastic rice.

(6) Hot oil method: directly put a little rice into boiling oil. If it is plastic, it will melt and stick together or stick to the bottom of the pot.

2. How to identify rice:

(1) Look at the hardness. The hardness of rice mainly depends on the content of protein. The harder the rice is, the higher the protein content and the higher the transparency. Generally, new rice is harder than old rice, low decimeter is harder than high decimeter, and late rice is harder than early rice.

(2) look at the white abdomen. There are often opaque white spots on the abdomen of rice. White spots are called "heart white" in the center of rice grains and "outer white" in the outer abdomen. Belly white rice is low in protein content and contains more starch. Generally, rice with high water content, immature rice and immature rice after harvest has a big white belly.

(3) look at the waist. Waist explosion is a transverse crack caused by the sudden heating of rice during the drying process and the imbalance of internal and external shrinkage of rice grains. Fried rice tastes rotten and endogenous, and its nutritional value is reduced. Therefore, when selecting rice, we should carefully observe the surface of rice grains. If there are one or more transverse cracks on the rice grain, it means that it is popcorn.

(4) Look at the yellow lines. The yellowing of rice grains is caused by the chemical reaction of some nutrients in rice under certain conditions or by microorganisms in rice grains. The smell and taste of these yellow grains are very poor, so be sure to observe the number of yellow grains in rice when purchasing. In addition, there are many "dead green" grains in rice grains, and the quality of rice is also poor.

(5) look new. The aging phenomenon of rice is serious, the color will darken, the viscosity will decrease and the original flavor will be lost. Carefully observe the color of rice grains when purchasing. The rice with gray powder or white grooves on the surface is old rice, and the more it is, the older it gets. At the same time, pick up the rice and smell it If it smells moldy, it means old rice. In addition, see if there are insect-eaten particles in the rice. If there are moth-eaten grains and insect carcasses, it means old rice.

(6) Measure moisture. If there is no noise, it sticks to the teeth when chewing, indicating that the water content exceeds the standard.

(7) look at the color. If the rice grains are black and cracked, it is overheated rice. If the color and appearance of rice grains are too white and slippery, it may be polished; If it is light green, it may be dyed with artificial pigment.

reference data

Baidu Encyclopedia:/item/%E5% a1%91%E6% 96% E5% A4% A7% E7% B1%B3/7632600? Fr = Aladdin