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Can hairy crabs be eaten if they die in the refrigerator?
Whether hairy crabs can be eaten after being put in the refrigerator depends on the specific situation. Dead crabs with fresh-keeping layer can't be eaten: the temperature in the fresh-keeping layer of the refrigerator is relatively high, which can keep vegetables and fruits fresh, but it can't well inhibit the activity of fungi, and at the same time, it has no strong inhibitory effect on the enzyme activity in the hairy crabs themselves. Therefore, after the hairy crabs in the fresh-keeping layer die, there will still be a lot of fungi breeding, and some histamine substances will be released in the body, which is toxic and inedible.
The frozen hairy crabs can be eaten: the temperature of the frozen layer in the refrigerator is generally below 0, which has a strong inhibitory effect on the activities of fungi and enzymes, and the hairy crabs stored in this layer will soon be frozen. Therefore, the hairy crabs are frozen to death, and there will be no fungi or toxins in their bodies, which is also the main method for long-distance transportation of hairy crabs. You can rest assured to eat.
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How to tell whether hairy crabs are dead or not
1. Look at the color: the back of fresh crabs is bright red and the abdomen is bright white after cooking, while the back of dead crabs is dark red and the abdomen is gray and gray.
2. Smell: Live crabs taste fresh seafood after being cooked, while dead crabs have a particularly pungent smell after being cooked because of their rotten meat, which is different from the bad smell of food.
3. Pinch hardness: After the live crab is cooked, its shell is hard, and it will not sag when pressed by hand, while the dead crab is soft because it has begun to rot, so it will be pressed by hand.
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How can hairy crabs be preserved without dying?
Live culture at room temperature: Hairy crabs are actually very vital. Just put the bought hairy crabs in clean water for a few minutes, then put them away in a spacious basin or box, and sprinkle some water into them regularly to ensure the humidity of their living environment. Generally, if the room temperature does not exceed 25 degrees, they can survive for 3~5 days. If you put some food on them, they will be able to feed for a longer time without losing weight.
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How to choose fresh hairy crabs
1. Touch the crab's eyes: the crab is relatively alive. When you touch its eyes, the eyes will immediately retract into the orbit, and when you take your hand away, it will stretch out again.
2. Turn over: Those who are fresh crabs are very active. For example, turn over the hairy crabs with their stomachs up, and the fresh ones will soon turn over by themselves.
3. Look at bubbles: crabs have the habit of drawing bubbles. Put crabs in a dry place. If they can spit out a lot of bubbles, they are fresh.