Pig's blood cannot be frozen.

Pig's blood must be kept in the freezer, not frozen, or it will freeze and become inedible. Pork blood itself is mainly protein, in the freezer for a period of time, its moisture will be lost, but its nutritional value will not change. It's best not to keep it refrigerated for more than 3 days, otherwise it will become stale and sticky.

Tips for selecting pig's blood

1, look at the color, assured that the pig's blood is generally dark red; fake pig's blood due to the addition of hemoglobin, etc., the color is very bright.

2, with the hand touch, rest assured that the pig's blood is hard, fragile; fake pig's blood due to the addition of formaldehyde and other chemicals, flexible and not easy to break.

3, look at the cut surface, cut the pig blood block, rest assured that the pig blood cut surface rough, irregular holes; fake pig blood cut surface smooth and flat, can not see the air holes.

4, smell, assured that the pig's blood has a faint fishy smell; if you can not smell the fishy smell, it is fake pig's blood.

The above content reference? Baidu Encyclopedia - pig's blood