A list of the contents of this article:
- 1 、What does it help to put an ice cube on top of the fish? What's the reason for putting it on it? Why?
- 2 、A man in Hunan bought 100 ice cubes to cool the fish. What is the current situation of the fish?
- 3 、How to thaw frozen fish so that it can be as fresh and tender as live fish?
- 4 、In the summer vegetable market, we often see the boss of frozen fish put ice cubes on the fish. Why?
- 5 、Put the live fish in the refrigerator and thaw it into ice cubes. Can the fish still live?
- 6 、What kind of fish is that fish used as ice in the supermarket?
What does it help to put an ice cube on top of the fish? What's the reason for putting it on it? Why?
Putting ice cubes on fish like this also makes it more fresh to the greatest extent. Another is that some illegal traders will also use ice to freeze seafood in order to buy retained seafood, which reduces the smell of long-standing seafood while maintaining its appearance and hardness, making it difficult for consumers to detect its corruption. No matter how frozen it is, it can only make itself corrupt more slowly, without the health and environmental protection of live seafood.
Put ice on top of the fish to keep it fresh. Because the air conditioning of the ice is sinking and can cover the whole body of the fish.
Put it on top: generally speaking, cold air is heavier than hot air, so putting ice on top can cool all the space below, but if you put it on the bottom, the fish in the upper part will not cool down.
Because the ice is a crystal, when you put it on the fish, the ice is endothermic and melts while the temperature remains the same, which can keep it fresh.
The owner of the fish pond bought 100 pieces of ice to cool the fish and invited the fish to eat popsicles, which is scientifically based, because the ice is endothermic in the process of melting, but putting a 100 pieces of ice in a fish pond may have very little effect.
Not only will the appetite become lower and lower, but also will gradually become underwater. The pH in the water must be guaranteed, which is an important condition for the growth of fish. Nowadays, people who raise fish like to keep them in places with plenty of light, because fish can be healthier only when they grow in the sun. Because with the light, there will be photosynthesis of aquatic plants, so that there are sufficient nutrients on the leaves.
A man in Hunan bought 100 ice cubes to cool the fish. What is the current situation of the fish?
Therefore, in such a special time, heatstroke prevention work must be done more in place. A man in Hunan bought 100 ice cubes to cool the fish. Due to the high temperature in summer, many farmers who are engaged in aquaculture are even more miserable. Because most parts of China show abnormal high temperature, which directly causes the water temperature of some fish ponds to be too high.
In Yueyang, Hunan Province, due to the continuous high temperature in summer, the water temperature of the pond was also very high. A landlord bought 100 ice cubes and put them in the pond to cool the water in the pond. Because what is put in its fish pond is black fish fry, if the water temperature is too high, the fry will die.
A man in Hunan bought 100 yuan worth of ice cubes to cool the fish. Because men raise black fish fry in the pond, the fish may die if the temperature is too high. The man thought that he would eat a popsicle when it was hot, so he wanted to use this way to help the fish improve their living environment. Fish have strict requirements on the living environment, which can be viewed from the following points.
According to domestic media reports, a fish pond owner bought 100 pieces of ice to cool the fish. From this phenomenon, we can know that the weather in Yueyang, Hunan is very hot, with the highest temperature reaching more than 41 ℃.
Because of the hot weather, the owner of the fish pond bought some ice to put in the fish pond, because this method is said to have a certain cooling effect, but the cooling effect is not particularly good, the whole area of the fish pond is too large. The number of ice cubes is limited, too much, easy to cause fish stress response is too little, can not play a cooling effect.
The man bought 100 ice cubes to cool the fish recently, the weather is getting hotter and hotter, not only people need to find ways to cool down, but also animals need to cool down! On August 6, the owner of a fish pond in Yueyang, Hunan Province bought 100 pieces of ice and put it in the fish pond to cool the fish. The video of him putting the ice in the fish pond caused a heated discussion among netizens. It is reported that due to the very hot weather outside, the boss bought a truckload of ice, and then several people threw the ice into the fish pond.
How to thaw frozen fish so that it can be as fresh and tender as live fish?
1. Defrost the frozen fish taken out of the refrigerator in the microwave oven. touch the frozen fish on the surface with salt, then put it on a plate and open it in the microwave oven for about 3 minutes to defrost quickly. Some microwave ovens have their own thawing stops, which are the most convenient to use. As long as you press your hand on the fish, you feel that the meat on the fish is a little soft, indicating that the fish has been thawed.
2. The methods of thawing frozen fish are as follows: put some salt in the water, sprinkle the fish with rice wine, choose the cooking method according to the freshness of the fish, and add some milk to the soup. Frozen fish thawing can put some salt in the water, can also increase the freshness of the fish, when cooking frozen fish, wipe the fish inside and outside with fine salt, and then deep-fry cooking after 30 minutes, the taste of the dish will be more delicious.
3. Brine thawing method. Take a large basin, add a handful of salt, add the right amount of water, stir until the salt melts to make light salt water, and then take out the fish that need to be thawed from the refrigerator and put them into the basin. In this way, it only takes more than ten minutes to thaw the fish quickly, and when eating, the fish is especially fresh. White vinegar thawing method. Pour warm water into the bowl, add salt and white vinegar and stir well.
Method 4: add salt and lemon to the water, cover the fish and wait for 5 to 10 minutes to thaw. This freezing method can make the fish as fresh as before freezing.
In the summer vegetable market, we often see the boss of frozen fish put ice cubes on the fish. Why?
The answer is to eat fish. When you suddenly see the farmers' market in Oymyakon, you will find that the people in a small town are short of food. in his farmers' market, they do not sell vegetables, do not do fruit business, and do not sell the fresh meat that we often see. They are just fishmongers and frozen fish. In fact, even if they sell fresh fish, the fish are frozen out quickly at an ultra-low temperature of minus 70 ℃.
The vegetables with low starch content without blanching lose more juice during thawing and lose a lot of B vitamins, vitamin C, minerals and other nutrients. After thawing, the texture and color of animal food will become worse, the loss of juice will increase, and meat may become defrosted and stiff.
Because the ice is a crystal, when you put it on the fish, the ice is endothermic and melts while the temperature remains the same, which can keep it fresh.
Put the live fish in the refrigerator and thaw it into ice cubes. Can the fish still live?
1. Put the live fish in the refrigerator and thaw them into ice cubes. The fish will not live. Because the frozen fish's body temperature drops sharply, which is lower than the normal metabolic range of body temperature, which affects the normal progress of life activities and leads to death. Fish is an aquatic animal, but also has a substance metabolism, metabolism will produce a certain amount of heat, so the fish's body temperature is slightly higher than the surrounding water temperature of 0.5 million degrees.
2. Put the live fish in the refrigerator and then thaw them into ice cubes. Of course, the fish cannot live, so when you buy seafood at ordinary times, you must pay attention to buying high-quality seafood according to its freshness. Only in this way can you meet more hygienic and safe dietary requirements.
3. I can tell the landlord responsibly whether the chilled fish is still live after thawing, depending on the drinking method when frozen. In general, the live fish becomes dead when frozen, but if there is a way to freeze the fish instantly, so as not to cause damage to the physical function of the fish, this kind of fish can still live after thawing in the right way.
4. It seems that no, fish can go dormant at low temperature, which is also the method of using ice in long-distance transportation, but this kind of fish does not live long after recovery, so the survival rate is not as high as that of oxygen transport. So the live fish had better not be frozen deeply, and the cooking is not delicious.
5. The possibility of living is very small, and the damage of fish somatic cells is relatively large in the process of freezing and thawing. Fish are the oldest vertebrates. They inhabit almost all the aquatic environments on earth-freshwater lakes, rivers to saltwater oceans and oceans. Fish are mainly divided into tropical fish, temperate fish and cold belt fish. Water fish are divided into freshwater fish and saltwater fish. Fish have good hearing.
What kind of fish is that fish used as ice in the supermarket?
The fish that serves as ice in the supermarket is a belt fish. Because it has been frozen in the refrigerator for a long time, no one wants it, so it has formed into ice.
2. The fish on the ice cubes in the supermarket are fresh. The fish on the ice cubes in the supermarket are captured and transported to the supermarket for sale in a relatively short time. Use ice to reduce the fishy smell of fish and ensure that the body color of the fish is not damaged. Compared with frozen meat at home, ice preservation will not freeze the moisture in the meat, and the nutrients will not be destroyed during thawing, affecting the taste.
3. Hello, it must be fresh. Because it's frozen, it's sea fish. Or it will rot. It won't be new.