hairtail: Silver scales do not scrape off a layer of silvery white substance on the surface of

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hairtail. It is often mistaken for the scale of hairtail, and it is said that it is a kind of thing with strong fishy smell, so it is always washed away by every means before cooking. Chen Peiyi, director of the

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capital society for nutrition, health and food, said that the silvery white substance was not scales, but a kind of fat without fishy smell, which had certain nutritional value. It contains unsaturated fatty acids, lecithin and 6-thioguanine. The silver scale of hairtail can also play a role in making hairtail not easy to be broken in cooking.

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therefore, the “scales” should not be removed when washing hairtail. Silver scales are afraid of heat, and will dissolve in water at 75 ℃. Therefore, the water temperature should not be too high when cleaning hairtail, and excessive scraping and wiping of the surface of the fish body should not be conducted to prevent the loss of silver grease. However, this silvery white fat is easily oxidized to yellow after long time exposure to air, and has a certain “Hala flavor”. When this happens, it’s time to scale.

shellfish: eat fresh but don’t be greedy for

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. When eating seafood delicacies, be sure to cook them well before eating them. Never eat raw seafood for freshness. Shellfish are susceptible to norovirus and Vibrio cholerae. Therefore, when eating scallops, should try to avoid not steaming, in order to avoid raw meat contains pathogenic bacteria harm to health.

however, although you want to eat them cooked, you still have to choose fresh ones. Fresh shells and shellfish meat are very bright. Another way is to tap the shells gently. If you live, they will naturally close the shells, but the dead ones will not respond.

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sea cucumbers: it is not difficult for many people to produce sea cucumbers at home. Soak the sea cucumber in cold water for 6 hours, soften the sea cucumber and then dispose of the viscera. Cut the belly of the sea cucumber longitudinally to remove the impurities in the belly. Rinse with cold water for 2 hours. Put the edible alkali into the water, boil it, turn off the fire, soak the sea cucumber for 2 hours, and repeat twice. After taking out the sea cucumber, rinse the alkali taste with water and put it into ice water, so that the meat quality of sea cucumber is more elastic. Don’t rub sea cucumber with salt, it will make sea cucumber hairless.

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braised sea cucumber with Scallion has always been a reserved item in my family’s menu. It is more or less grand to put it on the table. Sea cucumber is fresh, soft, fragrant and smooth, with thick scallion. It has no residual juice after eating. It can nourish the lung and kidney.

scallops: fresh scallops have elastic shells.

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scallops are delicious and nutritious. They are one of the three treasures of seafood. It is also good to dry the white introverted muscles of scallops into dried scallops.

how to choose this scallop? Wang Leijun, a national first-class nutritionist, said that when buying fresh scallops, you must smell them. If there is a smell of gasoline or kerosene, you should be careful. It may be contaminated by methylmercury. Also have a look, fresh scallop shell color is bright and elastic.

prawns: don’t eat

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shrimps. They are delicious food for all ages, especially fresh shrimps, which are sweet and fresh after cooking. Zhang Ye, former director of the Nutrition Department of 309 Hospital of the PLA, said that although the shrimp are delicious, we should also pay attention to the fact that the cholesterol content in the head of the shrimp is high, and it is easy to leave some heavy metals. In the season of large-scale shrimp reproduction, shrimp seeds also contain some cholesterol. High blood fat, high blood pressure and diabetes friends need to pay attention to when eating, shrimp head and shrimp seeds as much as possible to eat. The above content of

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