How to judge wild shrimp and how to identify wild shrimp when buying shrimp?

1.Identifying wild and farmed shrimp: Wild and farmed shrimp are very different when they are the same size and freshness.

Some unscrupulous traders often use farmed shrimp to pass off as wild shrimp, in fact, there is a big difference in the appearance of the two, and you will not buy wrong if you carefully identify them: the beard of farmed shrimp is very long, while the wild shrimp whiskers are short, and the head of farmed shrimp is long, with sharp teeth and soft texture, while the head of wild shrimp is short, blunt and hard.

2.How to pick shrimp:

When selecting, we should first pay attention to whether the shrimp shell is stiff and shiny, and whether the shrimp head and shell body are tightly attached to the shrimp body, hard and firm, and whether there is peeling.

Fresh shrimp is normal in color and smell; In addition, it is also necessary to pay attention to the firmness and elasticity of the shrimp flesh;

The shell of inferior shrimp is dull, the carapace becomes more black, the body color becomes red, and the carapace is separated from the shrimp body; The shrimp tissue is soft and smells of ammonia; The head of the shrimp has its chest and abdomen detached, and the head and carapace turn red and black.

3.The body color of farmed shrimp is affected by the substrate of the farm, and the body surface is blue-black, and the pigment spots are clear and obvious.

Wild shrimp are generally small and vary in size, and its growth cycle is long, generally growing for more than three years before it can become a commodity. Wild shrimp taste more delicious. Now there are some pollution problems in the environment, and shrimp grown in a good environment are healthier.

Like the steward, the salt-watery shrimp tastes very delicious and the meat is tender.

The wild ones should be thinner, and the domestic ones should be fatter.

The method is as follows: 1. Look at the softness and hardness of the shrimp shell.

Due to the better nutritional status of cultured shrimp, the growth cycle is shorter, and the shelling cycle is shorter, so the shrimp shell is softer. However, wild shrimp have a long growth cycle and slow shelling, and the shell is relatively hard.

2. Look at the size and size of the shrimp.

In general, the body shape of captive-bred shrimp is generally relatively round because of the sufficient bait and suitable environment; The wild ones are more elongated.

3. Look at the color of the shrimp head.

Many of the farmed shrimp heads are black, because of feeding, some shrimp are sick and the merchants feed medicine, and the toxins accumulate on the head; Whereas, the wild shrimp heads are mostly red.

4. Look at the color of the shrimp.

The color of the shrimp is brighter than that of the farmed shrimp, that is, if you put two different shrimps together, it will be easy to see that the color of the shrimp will be lighter and yellowish than the farmed shrimp.

1. The body shape is curved. At present, many friends do not like the curved shrimp to eat, mainly because such shrimp generally look relatively small, and it is not easy to shell, but we don't know, fresh shrimp is to have a complete head and tail, the head and tail are closely connected with the body, the shrimp body is relatively straight, there is a certain elasticity and curvature, if you choose the shrimp head and body, shell and meat are connected loosely, the head and tail are easy to fall off or separate, can not maintain its original curvature, then it is very likely to be stale shrimp, More likely, it's already a dead shrimp.

2. The body surface is dry. The appearance of the fresh shrimp is clean, and it feels dry when touched by hand. However, when the shrimp body is about to deteriorate, the granular cells that secrete mucus under the carapace disintegrate, and a large amount of mucus seeps into the body surface, making it slippery to the touch. If the shell sticks to the hand, it means that the shrimp have gone bad.

3. Bright color. Depending on the species of shrimp, there is a slight difference in color. Fresh prawns, Roche shrimp and grass shrimp are blue, sea-caught prawns are pink, and bamboo shrimp and Jiwei shrimp have black and white patterns with a slight pink.

If the shrimp has black hair, it is not a fresh shrimp, and the whole shrimp is relatively black and not bright, which means that it has deteriorated.

4. The meat shell is tightly connected. The fresh shell is very tightly attached to the flesh, and when you peel the shell by hand, the flesh is sticky to your hands, and it takes a little effort to peel off the shell. The intestinal tissue of fresh shrimp is also sticky to the meat of the shrimp stove, and if it is loose, it indicates that the shrimp is not fresh.

5. No peculiar smell. Fresh shrimp have a normal fishy smell, if there is a peculiar smell, it means that the shrimp have gone bad. In addition, it is important to pay attention to safety and hygiene when eating shrimp.

Shrimp may contain bacteria and parasites that are resistant to low temperatures, and even dipping them in vinegar and mustard cannot completely kill them, so it is recommended to eat them after they are cooked thoroughly. Shrimp that have been eaten in a state debate should be put in the refrigerator and refrigerated before being eaten again.

Method: Be cautious.

Incomplete prawns.

When we are choosing the prawns, we should see whether the prawns are complete, see if the shrimp head and shrimp tail are separated, and you can also drag the shrimp whiskers, if the shrimp head and shrimp body are incomplete, missing arms and legs, or obviously feel that the shrimp body and shrimp head are not firm, it will be broken at a mention, even if it is very cheap, do not buy, shrimp like this is very unfresh, and the taste is relatively poor. Fresh prawns are intact in shape, with their heads and tails closely connected to their bodies, flesh and shells.

Shrimp with black hair.

Fresh prawns look like the shrimp head is blue and transparent, if the shrimp hair is black, it means that the prawns have been left for a long time, and they are not very fresh, or even have deteriorated. Therefore, if you see shrimp with black hair or black shrimp body, it is not recommended to buy it.

The surface is sticky and good shrimp.

When we are buying prawns, we have to touch the shrimp body with our hands, and the fresh prawns are refreshing and clean to the touch, and they are not sticky; Stale prawns will have a lot of mucus on the body surface, and they will be very slippery to the touch, so don't have the illusion that you will be fine if you wash them with water. Most of these prawns are not fresh, or they are about to spoil, and it is harmful to the body to buy them at home, so remember not to buy them for the sake of health!

Smelly prawns.

When you buy shrimp, you can also pick it up and smell it, fresh shrimp will only have a faint smell of sea, if you smell other smells, or even stink, such shrimp has deteriorated and will produce a lot of bacteria, so don't buy it.

Here's how to distinguish it:

1 The whiskers of farmed shrimp are very long, while the whiskers of wild shrimp are short, the head of farmed shrimp is long, the teeth are sharp, and the texture is soft, while the head of wild shrimp is short, blunt, and hard. There is little difference in the nutritional and chemical composition of farmed shrimp and wild shrimp.

2 If the same shrimp are the same size, they must be farmed. On the other hand, if the size is different, it may be wild!!

There are very few wild shrimp with 3 large heads, and large shrimp are usually farmed.

See if the shrimp sold are uniform in size, if they are about the same size, they are farmed, and if they are large or small, they are almost wild.

There is little difference in the nutritional composition and chemical composition between farmed shrimp and wild shrimp, but the taste of shrimp is more delicious than that of shrimp and the aftertaste is long, so there is a big difference between shrimp and shrimp in the same size and freshness.

Some traders take advantage of consumers' lack of distinguishing ability to pass off farmed shrimp as marine shrimp, which is very different in appearance from the same species of shrimp.

The whiskers of farmed shrimp are very long, while the whiskers of litopenaeus vannamei are short, and the head of cultured shrimp is long, with sharp teeth and soft texture.

The head of the ocean-caught shrimp "shrimp squeam" is short, the teeth are blunt, and the texture is hard.

Hello, when choosing, you should first pay attention to whether the shrimp shell is shiny and stiff, whether the shell body and shrimp head are tightly attached to the shrimp body, whether there is peeling, hard and firm. 2. Wild shrimp have a large fishy smell, while farmed shrimp do not.

Wangzi shrimp is a wild shrimp in the sea. Eating fresh seafood creatures grows up, the quality is better than ordinary shrimp, rich in magnesium, to regulate the heart, protect the heart and blood system, prevent high blood pressure, has a good effect.

Shrimp are generally available in large quantities from mid-July to mid-September. The water in the sea is seawater, and the salinity is twice that of seawater.

Wang (Sisheng) shrimp, also known as Hong Kong shrimp, is our local specialty and the best shrimp in China, which is related to the lowest salinity of the sea water in Bohai Bay. On the coast of Tianjin, there are many artificially dug ponds, and the water is directly brought in from seawater, which we call Yanwangzi.

Wangzi shrimp because of the taste, bright color, shrimp meat, good taste and favored by the majority of customers, we pick shrimp to buy shrimp when you need to look carefully, shrimp stomach black and yellow that is fed feed is not Wangzi shrimp, so we choose shrimp not only to be fresh, but also to see the color.

The color of the shrimp is red and dark, the shoulder and back meat are firm, and the fishy line on the back is not obvious; When cooked, it turns red, and when you take off the shell and put it in your mouth, it tastes like seafood, and it is very elastic when you bite into it, and the meat is more chewy.