Can live swimming crabs be frozen directly?

Many people buy swimming crabs, and they will buy more at a time, but they can't finish them after buying them for a long time, so I don't know whether these live swimming crabs should be placed in the frozen layer or the cold room. Let's talk about the best way to raise swimming crabs and learn quickly.

Swimming crab

sabotage

1

Is Portunus trituberculatus frozen or refrigerated?

If it can be eaten within 3 days, it is best to keep it fresh in cold storage.

Portunus trituberculatus tastes fresh and tender, its meat is fresh and tender, and its taste is rich in nutrition. Usually, the live Portunus trituberculatus is best to tie the pliers and crab feet with cotton rope to reduce activity consumption, then put them on a plate, cover them with a wet towel to keep them moist, and finally put them in the refrigerator to keep their taste unchanged for about 3-5 days.

However, if it needs to be preserved for a long time, the ambient temperature in the refrigerator can not meet the standard conditions for eating. Live swimming crabs must be put into the frozen layer immediately to avoid the taste deterioration of swimming crabs.

2

Can live swimming crabs be frozen directly?

You can't.

Live swimming crabs need to be treated as follows before freezing:

1. Tie the live swimming crab with cotton rope to tie the crab tongs and legs to avoid crawling activities.

2. Then put the tied swimming crab into a sealed fresh-keeping bag or box to prevent the frozen food from stinking, which can be stored for 1-3 months.

3. If the swimming crab is about to die, it is recommended to cook it thoroughly before freezing to avoid spoilage after freezing, and it can be kept for about 7 days.

Remarks: swimming crab does not need to be washed with water before freezing, which is beneficial to ensure the original flavor of swimming crab.

three

Can dead swimming crabs be refrigerated?

I can't.

The dead Portunus trituberculatus probably bred a lot of bacteria, and the protein in its crab meat will be denatured under the propagation of bacteria, producing histamine substances harmful to human body. Even if it is placed in a refrigerator at 5- 10, it can't stop the continuous reproduction of bacteria and the deterioration of crab meat. Therefore, the dead Portunus trituberculatus cannot be stored in cold storage. It is suggested that the newly dead Portunus trituberculatus be cooked and eaten as soon as possible.

four

Portunus crab is empty after freezing.

If Portunus trituberculatus is frozen for too long, the crab meat will harden and the water will precipitate. After thawing, the crab meat tissue will become soft and rotten, and the meat quality will be reduced, but generally the meat quality will not disappear completely, unless the frozen Portunus trituberculatus itself is not a live crab, and the internal meat quality has rotted and cavitated before freezing, and then it will continue to be frozen for sale. Such events are often reported in some news and post bars.

Frozen swimming crab scam

On a post bar, some netizens said that they bought a door-to-door swimming crab, which was cheap and the packaging was very formal. When they opened the box, the frozen swimming crab looked good. However, after the ice in the swimming crab thawed, they found that the crab looked empty, and so did the rest. Moreover, the internal meat was eroded, and it was suspected that the rotten crab was frozen again. Such swimming crabs must not be eaten, and food poisoning symptoms are likely to occur.