Soy sauce is one of the commonly used condiments. Soy sauce contains a lot of free amino acids. During the cooking process, amino acid salts, sugars, etc. react to make food produce attractive aromas and make dishes more delicious. But with the development of society and the advancement of technology, soy sauce blended with various chemical substances has appeared in the market. Who would have thought that human hair has become the raw material for making soy sauce!

　　 black heart food: hair water soy sauce, industrial salt soy sauce
　　 Hazard Index: ★★★★★
　　 Harmful consequences: liver and kidney function damage, reproductive system and blood system damage, strong carcinogenesis

　　Buying food, jingle: buy soy sauce, recognize the label, try not to buy blended. Shake the bottle to see the foam, the good soy sauce foam is even and not easy to disperse. Look at the wall of the bottle crookedly, good soy sauce will not leave oil stains.

　　How to avoid buying hair water soy sauce?
　　To identify hair water and soy sauce, just follow the following three steps.

　　The first step is to look at the label.
　　 First of all, we have to figure out whether we buy brewed soy sauce or blended soy sauce. The main raw materials of soy sauce brewed by traditional technology are soybeans, wheat and edible salt. The "brewed soy sauce" sold in supermarkets, in addition to using various natural ingredients, also adds a small amount of additives for preservation and color enhancement. The label of blended soy sauce manufactured by modern technology will list a variety of chemical additives, such as sodium glutamate, disodium inosinate, disodium guanylate, disodium succinate, sodium benzoate, sorbic acid, Caramel color, sucralose, sodium saccharin, protein sugar, etc. The blended soy sauce adds a lot of preservatives and pigments, so regular consumption is of no benefit to the human body. Therefore, we still try to buy brewed soy sauce as much as possible.

　　 The second step, look at the bubbles.
　　 Not all soy sauces that call themselves "brewed soy sauce" are good soy sauces. To judge the quality of soy sauce, gently shake the soy sauce bottle to see the foam. The foam of brewed soy sauce is more uniform and not easy to disperse. The foam produced by the blended soy sauce varies in size, and when you stop shaking the bottle, the foam will quickly dissipate. Hair water soy sauce is also a blended soy sauce, so if the ingredient list says "brewed soy sauce" and the foam shows "blended soy sauce", be careful.

　　 The third step, look at the bottle wall.
　　Making hair water soy sauce must add a lot of pigments and thickeners, so we can identify them in a simple way. Tilt the soy sauce bottle or upside down, and then put the bottle upright. If it is hair water soy sauce, it will stick to the wall of the bottle, leaving a piece of black dirt, which will not run clean for a long time. You should never buy such soy sauce home.

　　 After mastering these three steps, you can basically avoid buying hair water soy sauce from a black heart manufacturer by mistake.

　　 In addition, I would like to remind you that when buying soy sauce, don't think that the darker the color and the thicker the texture, the better the quality of soy sauce. Because the soy sauce made from pure grains is light in color and thin in texture. When producing soy sauce, the manufacturers of blending soy sauce often add a thickener called xanthan gum to the soy sauce. After adding the thickener, it’s not enough. They have to add seven or eight colors of pigment to make the soy sauce better. The color is stronger. These thickeners and pigments are harmful to the human body.

Intimate tips
When buying soy sauce, be sure to look at the label: When buying soy sauce, be sure to look at the label to see if you are buying "soy sauce for table" or "cooking soy sauce". Soy sauce can only be used for cold dishes or raw dipping. Cooking soy sauce is heated and eaten during stir-frying and has not been sterilized. If you buy cooking soy sauce and cook it as a cold dish, it is easy to have a stomachache.