Pig blood must be put in the freezer, never frozen, otherwise it will freeze and cannot be eaten. The taste and color of frozen pig blood will be much worse. It will break when you cut it with a knife, and it won't cut as easily as fresh.

Pig blood itself is mainly protein. After being stored in the cold room for a period of time, its moisture will be lost, but its nutritional value will not change. It is best not to refrigerate for more than 3 days, otherwise it will deteriorate and become sticky.

Extended data

profit

1, the iron content in pig blood is very high, and it exists in the form of heme iron, which is easy to be absorbed and utilized by human body. Children in the growing period and pregnant or lactating women eat more dishes with animal blood, which can prevent iron deficiency anemia and effectively prevent middle-aged and elderly people from suffering from coronary heart disease and arteriosclerosis.

2. Cobalt contained in pig blood is an important trace element to prevent the growth of human malignant tumors, which is difficult to obtain in other foods;

3, pig blood contains vitamin K, which can promote blood coagulation, so it has hemostatic effect;

4. Pig blood can also provide a variety of trace elements for human body, which is beneficial to the aftercare of malnutrition, kidney diseases and cardiovascular diseases, and can be used to treat dizziness, vomiting blood, epistaxis, metrorrhagia, traumatic hemorrhage, convulsion and epilepsy.

Eating pig blood is beneficial to iron deficiency anemia. The incidence of anemia in the elderly over 60 years old in China is very high, and the recent survey result is 2 1.5%. Iron in pig blood is heme iron, which is not only higher than any food, but also easily absorbed by human body. The absorption rate in small intestine can reach 37%, which is equivalent to the absorption rate of heme iron, the basic component of many iron supplements on the market. Therefore, if the elderly eat 20 grams of pig blood every day, they can basically make up for their demand for iron and avoid and correct anemia.

6, help to lose weight, for friends who are losing weight, pig blood is undoubtedly an excellent food, because it is rich in iron, which can prevent friends who lose weight from being thin to anemia. Moreover, it is cheap and good, and it can be called "blood-enriching jade".

7, anti-aging, pig blood phospholipids, and phospholipids can increase the amount of acetylcholine, so that the connection between nerve cells is rapid, thus improving people's memory. Therefore, patients with early Alzheimer's disease should eat more pig blood.

shortcomings

Excessive consumption will cause iron poisoning and affect the absorption of other minerals, so it is recommended to eat no more than twice a week unless people with special needs.

References:

Baidu encyclopedia-pig blood