Tofu is a familiar and nutritious food.Tofu is considered a vegetable meat with rich protein, fat, high quality carbohydrates and many vitamins and minerals.

Whether fried, boiled or processed with other ingredients, tofu also creates delicious dishes with reasonable prices, is the choice that often appears in many Vietnamese meals.

However, when buying tofu, we also need to learn how to distinguish to avoid buying poor quality beans, affecting health.Here are 4 characteristics in tofu if it appears, so it should not be purchased.

1. Tofu too white

Tofu is made by crushing soybeans, adding some additives and cooking.Its main material is still soy.Meanwhile, because the soy itself contains a number of pigments and proteins itself, has a light yellow color, usually the bean pieces are also in this color.

However, due to the desire to have a beautiful appearance, many people make tofu have added whitening agents or other chemicals in the production process.Tofu is too white, although it looks very delicious, the taste and nutritional value will greatly reduce.Even if eaten in large amounts can potential threats to health.

Therefore, when we buy beans, we should avoid choosing too white.

2. Tofu has sticky surface

When buying tofu, we can touch the surface gently to see if it is sticky or not.If the tofu is fresh, durable, the bean will be soft and smooth, touching will sway slightly.But if the surface touches a slightly viscous and sticky feeling, this tofu has been left for a long time and begins to show signs of damage.

The cause of the sticky bean surface is due to the large amount of bacteria that produce toxins that are gradually developing and can be harmful to health, leading to phenomena such as abdominal pain, diarrhea, vomiting and nausea ... even evenIn some serious cases, food poisoning may cause food poisoning.

3. Tofu has a strange smell

Tofu is made from soy so it smells of fragrant beans.This is their normal smell.

However, if the tofu smells strange or sour, they have been done for quite a long time or bacterial infection during storage.This tofu not only has an unpleasant taste but can also contain a lot of bacteria, toxins, which can be harmful to health if eaten.

4. Tofu is not soft

The main ingredient of tofu is water.When the tofu is long, the amount of water in tofu will be lost.

Therefore, when buying tofu, we should also pay attention to their elasticity.Fresh tofu has high moisture, if the light presses will clearly feel the elasticity, on the contrary, the bean has been left for a long time and the moisture inside has been lost.

Such tofu will lose the taste, no longer delicious so it is best not to buy.

Source: sohu