How to tell the difference between injected shrimp?
After glue injection, the color of shrimp will look too tender, the meat will be more solid, the shrimp will swell and peel easily. If vendors use edible gelatin, it will generally not endanger the health of customers. If industrial glue is added, it may contain heavy metals and carcinogens.
"Glued shrimp" is a kind of transparent glue between the shrimp head and the shrimp body. The shrimp injected with gelatin has a clear color and a large volume, which feels more like porcelain. However, when it is cleaned, it will be found that the shrimp head is particularly bulging and easy to peel off. There is an obvious translucent jelly-like thing in the shrimp head, just like glue. Whether it is harmful to human body is uncertain. It depends on whether the glue he injected is edible or not. But even if it is edible glue, it will be a little uncomfortable to eat.
1. Generally speaking, don't buy shrimp with a particularly bulging head and body. The head will swell badly after injecting glue. After the body is injected with glue, the hand will rebound obviously, while the normal body will sink.
2. The joint between the head and the body of the "glue-injected shrimp" can be easily peeled off by hand. If the shrimp head falls off as soon as it is lifted, and it freezes into a ball, it is not a common shrimp brain, but probably a glue-injected shrimp.
3. When people buy, they can break off the shrimp head and peel off the shrimp shell for careful observation. If the shrimp meat looks transparent and bright, it is relatively safe without translucent substances.
Harm of glue-injected shrimp
Because the injected gelatin is edible glue, it belongs to the food additive allowed by the state, so it is harmless to human body after eating. If it is industrial gelatin, the harm to human health is terrible. The harm of industrial gelatin to human health mainly comes from various heavy metal elements contained in it. The leather scraps exposed by the media for making empty capsules all contain chromium, cadmium, lead and arsenic, which are extremely harmful to human body.
Why is the shrimp marked with glue?
The reason why some gelatin is injected into the shrimp is to make the shrimp look good. Because frozen shrimp will become thin and dry after thawing, and its weight will be reduced. So it is popular to inject gelatin into the head and abdomen of shrimp. This can not only increase the weight of shrimp, but also avoid the phenomenon of depression and collapse of shrimp head, so that shrimp looks fuller and fresher. A shrimp can gain 20% to 30% weight after injection.