Tofu, as a treasure in traditional Chinese cuisine, is not only nutritious, but also popular with the public for its delicate and smooth taste. However, when choosing tofu from a wide variety of markets or supermarkets, we are often faced with a difficult choice. In order to ensure that you buy fresh and healthy tofu, it is important to learn to identify the "problem tofu" that should be avoided and to master the skills of selecting good tofu. Let's talk to you about some precautions when buying tofu, if you encounter the following five situations, remember to turn around and leave immediately, insiders never step on these pits.
One, tofu that looks too white in color.
Tofu is made of soybeans, and the color of soybeans is light yellow, so the color of the tofu should also be light yellow or milky white, and the surface will look slightly shiny, this is fresh and high-quality tofu. However, some unscrupulous merchants will use bleach to make the tofu look whiter in order to make it look better. Therefore, when buying tofu, if the color of the tofu is too white, we should not buy it. In addition, don't buy tofu that is too dark in color, it is likely to be made from soybeans that have gone bad, and the taste will be bitter.
Second, it smells of sour tofu.
Fresh and high-quality tofu will smell faintly bean, which is fresh and natural, and makes people feel refreshed and happy. When we get close to the tofu, the unique aroma of bean comes to our nose. However, if the tofu smells sour, fishy, etc., it may be that the amount of ingredients used in the production process is excessive, or it has been stored for a long time, and the nutrients in it are decomposed, producing peptides, organic acids and other substances, thus exuding a sour taste, such tofu has deteriorated, not only the taste is not good, but the nutrition will also be reduced.
Three, sticky tofu to the touch.
Tofu is rich in protein and water, making it an ideal environment for microorganisms such as bacteria and molds. In a warm and humid environment, microorganisms multiply rapidly, causing the surface of tofu to become sticky. Therefore, when buying tofu, if you touch the surface of the tofu, there is a sticky feeling or liquid oozing, it means that it has gone bad. Such tofu is likely to cause digestive tract diseases such as diarrhea after consumption, and we should not buy it.
Fourth, look at the empty tofu from the side.
Fresh tofu should be elastic, feel some resilience when gently pressed by your hands, and have a smooth surface with no cavities. If you can see a lot of holes on the side of the tofu, it means that the tofu may have been left for too long and is about to spoil. Because fresh tofu is a hydrogelated substance, when left for a long time and the water is lost, it will form a honeycomb shape and appear hollow. Such tofu is no longer fresh, so we don't want to buy it.
Fifth, everything will be slag tofu.
When buying tofu, if we find that the merchant is cutting the tofu, everything will fall off, so we don't want to buy it. Because the tofu that has fallen off the residue is usually caused by a large loss of moisture and the overall structure becoming loose after being stored for too long. This kind of tofu is not good in taste and nutrition. Therefore, when buying tofu, you should observe carefully and avoid buying tofu with slag.
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