Tofu containing gypsum is not uncommon. Gypsum is a food additive permitted by the Ministry of Health , but only in certain quantities. Establishments that add gypsum to food must register with the food safety management agency and are monitored for content and quality to prevent excessive use.
Food-grade gypsum is a pure, very expensive type. Currently, tofu producers are illegally using industrial gypsum commonly found in the construction industry to make a profit.
Many people are interested in knowing how to detect gypsum in tofu. (Illustrative image)
Traditional tofu is made from ground soybeans and coagulated or fermented using fresh lemon juice. In the traditional method, the amount of coagulation is not significant, so people add gypsum to the soybean water to increase the coagulation, potentially doubling the yield and boosting revenue.
People who consume foods containing high levels of gypsum are at risk of metal poisoning, kidney stones, and digestive disorders.
To distinguish between pure tofu and tofu containing gypsum, carefully observe the appearance of the tofu. Pure tofu is off-white, while tofu containing gypsum is pale yellow.
In addition, safe tofu feels soft to the touch, is elastic, and pliable. Tofu containing gypsum is usually firm, hard, with hard, yellowish edges, and dries out quickly. Furthermore, pure tofu is rich and creamy, while the gypsum-adulterated kind is fibrous, has a bitter taste, and is not fluffy when fried.
The above information will help you find out "how to detect tofu containing gypsum". You should choose reputable manufacturers to buy pure tofu or you can make tofu at home yourself.
Source: https://vtcnews.vn/cach-phat-hien-dau-phu-chua-thach-cao-ar873331.html
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