Fish is nutritious and delicious, and it is a kind of food suitable for all ages. In particular, fish is rich in unsaturated fatty acids, including DHA and EPA, which are very helpful for the neural development of the brain, so children and the elderly should eat more fish.
Although fish are good, not all fish can be eaten. Eating wrong is harmful to health. Many people don't know that some kinds of fish are high in heavy metals and can't be eaten, but many people used to think it was a good thing, so they bought some from time to time.
Below I will tell you about these kinds of "heavy metal fish", and don't buy them after understanding them.
1, alive but smelly
Many people like to buy live fish, thinking that they are fresh, which is true, but not necessarily good. If you smell a pungent smell, it means that the living environment of these fish is polluted. Fish contains a lot of heavy metals and even pollutants. Eating this kind of fish is harmful, so don't buy it.
2. Sashimi
Sashimi, also known as raw fish and preserved fish, is quite common in Japanese cuisine. For example, there are many sushi, such as salmon fillets and tuna fillets. These sashimi contain a lot of nutrients such as protein, which is easy to deteriorate. In order to prevent deterioration, formaldehyde water is usually used to keep fresh. Formaldehyde is a carcinogen, which is very harmful to human body.
3. Large deep-sea fish
In the ocean, eat small fish is the law of survival, a big fish with a big body and a long survival time. By hunting other small fish, a lot of heavy metals will be deposited in big fish, such as tuna and salmon.
4. Wild fish
It is said that wild fish is good, but it is not entirely true, because the wild environment is uncontrollable and easy to pollute. These wild fish are likely to live in a polluted environment, which contains not only heavy metals, but also parasites and bacteria, which is particularly bad for their health. The environment for fish farming is generally cleaner, and fish ponds will be disinfected regularly, which is safer than wild fish.
5. Dead fish
If it is a live fish, the harmful substances in the body can be metabolized through metabolism, but after the fish dies, these harmful substances, such as heavy metals and bacteria, cannot be discharged and will be deposited in the fish, so the heavy metals in the dead fish will be more than those in the live fish.
How to choose fresh fish? The fishmonger teaches you a few tricks to ensure that all the strips are fresh, delicious and healthy.
1, see if the scales are shiny.
Normal fresh fish with shiny scales. If they are not fresh, the scales will gradually lose their luster and become very dull.
2. See if your cheeks are bright red.
The blood circulation of fresh fish is relatively fast, so the gills for the fish to breathe will remain bright red, but when the fish is dying, the breathing will slow down, the oxygen inhaled will be less, and the gills will turn dark red.
3. See if the fish is still alive.
If it is fresh fish, when caught by hand or fished with a net, the fish will escape quickly and be full of vitality. But a dying fish can't be driven away by touching, so it can't be bought.
How to eat fish? You can make braised fish, sweet and sour fish, steamed fish, pickled fish and so on. , are very delicious. Today, I will share with you the practice of steaming fish to ensure that it is particularly fresh and tender.
Prepare fresh bass, green onions, ginger, peppers, cooking wine, soy sauce and cooking oil.
1, buy a fresh perch. Perch is the most suitable for steaming. It has almost no thorns, and its meat is tender. After steaming, it looks like garlic cloves. Slaughter the perch, clean it, rinse the bleeding water and drain it.
2. Put some cooking wine on the fish, then cut some ginger slices with onion and stuff them into the belly of the bass. Put some on the fish and marinate for 20 minutes.
3. Spread some ginger slices in the fish dish, put the salted fish in the dish, boil water on the pot, and steam for 8~ 10 minutes.
4. After taking it out, throw away the minced onion and ginger, pour the soup on the plate and add the right amount of soy sauce. Cut some shredded onion, shredded ginger and shredded pepper, put them on the fish and pour some hot oil to stimulate the fragrance. Steamed fish can be eaten