Some components in the blood are particularly vulnerable to bacterial decay and pollution even if they are placed in the freezer. Therefore, from a health point of view, duck blood must be eaten fresh, not in the refrigerator, and it is not good for the body if it is kept in the refrigerator for too long. ?

Step 2 soak in light salt water

Fresh duck blood can't be preserved for a long time. If you don't eat it for a while, you can soak it in light salt water to keep it fresh. You need to change water 1 2 times a day, which usually lasts about three days.

Fresh duck blood can't be preserved for a long time, so don't buy too much at a time, and don't buy it if you don't eat it that day.

Extended data

When buying duck blood, look at the color first. Real duck blood is dark red, and fake duck blood is generally brown.

Real duck blood is degassed and deodorized at high temperature during processing, and there is no blood smell, but there is a duck smell;

After the fake duck blood is broken, there are honeycomb pores inside, and chemicals such as starch are often added during processing, so it is generally tough and can be stretched. Real duck blood is crisp.

Details are as follows:

1, real duck blood is delicate and smooth, chopsticks are fragile, while fake duck blood is relatively rough and chopsticks are not broken.

2. After a piece of duck blood is drained with a napkin, if it becomes as tough as plasticine, it is fake duck blood.

3. Compared with fake duck blood, real duck blood is darker in color, more elastic and has a strong fishy smell. Generally speaking, fake duck blood is gelatinous in texture, not easy to break, similar in color to red bricks, and there are many honeycomb holes in the cross section. The real duck blood is dark red, with sparse pores and easy to break.