Can the black film in the fish belly be eaten? How to remove the black film in the fish belly

When we process fish, we will find a layer of black film on the belly of the fish. Many people say that this black film is poisonous because it absorbs all kinds of dirt in the water. So can this black film on the belly of the fish be eaten?

Can the black film in the fish belly be eaten?

The black film in the fish's belly can be eaten or not.

The black film in the fish's belly is actually a normal physiological structure of the fish, and its professional name is the visceral peritoneum. The film itself is high in fat, low in nutritional value, and does tend to accumulate some fat-soluble pollutants, which is an unhealthy choice. It can be removed, but it's okay to eat it.

Many higher vertebrates have such a membrane in their abdominal cavity. It can wrap most of the organs in the abdominal cavity, absorbing shock and protecting the internal organs. It can also secrete mucus to moisturize the surface of the organs and reduce friction between the organs. Therefore, it actually has the function of lubricating and protecting the internal organs.

So this black film is just pigmentation and not a serious pollution problem.

How to remove the black film in the fish belly

Keep live fish in clean water for at least half a day to automatically expel dirt from their bodies. After processing the live fish, scrape it with a knife, or scrub it with a toothbrush and a cleaning ball. If you have straw, you can use dry straw to knead into a ball and scrub it. It is best not to pick it directly with your hands, as it is easy to get hurt and get infected.

Generally, the better the water quality in the living area, the lighter the color of the fish's peritoneum. If the pollution is serious, the darker the peritoneum. The peritoneum of fish in water quality class 1 or above is a light golden yellow, and the meat of these fish is extremely delicious.

Is the black film in the fish's belly poisonous?

The black film in the fish's belly is actually not poisonous, and it does not have the function of filtering out toxins or pollutants.

Black film contains a higher content of fat, so it has a strange fishy smell. However, if pollutants such as heavy metals and pesticides enter the fish body, they will be concentrated in the fat tissue.