The original beef omasum is made of konjac flour, with glucomannan as the main component and soluble dietary fiber. Health food is popular in Japan and Korea.
Amorphophallus konjac grows in sparse forests and is a beneficial alkaline food. For people who eat too much animal acidic food, eating konjac together can achieve food acid-base balance. In addition, Amorphophallus konjac has many functions, such as lowering blood sugar, lowering blood fat, lowering blood pressure, expelling toxin and caring skin, dredging blood vessels, losing weight, relaxing bowels and appetizing.
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Pay attention when buying hairy belly, especially white hairy belly, which will turn white after soaking in hydrogen peroxide and formaldehyde for three or four days. When making water-based products, some unscrupulous traders first soak them in industrial caustic soda to increase their volume and weight, and then add formaldehyde and hydrogen peroxide in proportion to stabilize their volume and weight and keep their surfaces fresh and colorful.
The hairy belly brewed with industrial caustic soda is full and watery, and the use of formaldehyde can make the hairy belly more crisp and delicious. Long-term consumption of hairy tripe soaked in these toxic substances will lead to diseases such as gastric ulcer, and in severe cases, it can cause cancer.
If the hairy belly is white, more than it should be, and the amount is large, you should avoid buying it. The hairy belly soaked in formaldehyde will lose its original characteristics. Hands are easy to break when pinched, and will shrink quickly after heating, so avoid it.
You can also add a little hairy belly to a small glass, soak it in water, then take out the hairy belly, tilt the glass, carefully add a little concentrated sulfuric acid along the glass wall, and divide the liquid into two layers to avoid mixing. If a purple ring appears at the junction of the liquid surface, it proves that formaldehyde is mixed in the hairy belly.