Bring fish: Silver scales don't scrape off
The silvery-white substance on the surface of the fish is often mistaken for the scales of the fish, and it is said that it is a fishy thing, so it is always washed off before cooking.
Chen Peiyi, director of the Capital Nutrition and Health Gastronomy Society, introduced that in fact, the silver-white substance is not scales, but a kind of fat without fishy taste, which has certain nutritional value. It contains unsaturated fatty acids, lecithin and 6-thioguanine. Silver scales with fish can also play a role in making the fish less likely to break when cooking.
Therefore, when washing the fish, you should not "scale". Silver scales are afraid of heat, and will melt in 75 ° C water, so the water temperature should not be too high when cleaning the fish, and do not excessively scrape the surface of the fish to prevent the loss of silver fat.
However, this silvery-white fat is easily oxidized and turned yellow after a long period of contact with air, and has a certain "hara smell". When this happens, it's time to "scale" when washing.
Shellfish: Eat fresh but don't be greedy
When eating seafood delicacies, be sure to cook and then eat, do not covet fresh and eat raw seafood. Shellfish ingredients are susceptible to norovirus and Vibrio cholerae. Therefore, when eating scallops, you should try to avoid not steaming, so as to avoid the pathogenic bacteria contained in raw meat from endangering health.
However, although you have to eat it cooked, but if you buy it, you still have to choose fresh, fresh shells and shellfish are very bright, and there is a way to gently tap the shells, the living will naturally close the two shells, and the dead will not react.
Sea cucumber: one soak and two washes can not be less
Many people don't send sea cucumbers at home, which is actually not difficult. First soak in cold water for 6 hours, soak the sea cucumber softly and then treat the internal organs, cut the belly of the sea cucumber longitudinally, and remove the impurities in the stomach of the sea cucumber; Rinse with cold water for another 2 hours; Put the edible alkali into the water, boil and turn off the heat, put in the sea cucumber to soak for 2 hours, repeat twice, rinse the alkali with water after fishing out, and put it into ice water, so that the flesh of the sea cucumber is more elastic. Wash the sea cucumber without rubbing it with salt, it will make the sea cucumber impenetrable.
Grilled sea cucumbers with green onions have always been a reserved item on my family's menu, and they are placed on the table, more or less a little grand. Sea cucumber is fresh, soft and smooth, the green onion is fragrant, and there is no residual juice after eating, which can nourish the lungs and supplement the kidneys.
Scallops: Fresh scallop shells are elastic
The taste of scallops is very delicious, very nutritious, is one of the three treasures in seafood, the white introverted muscle in the scallops dried to make dried scallops, it is really good.
So how to pick this scallop? Wang Leijun, a national first-class nutritionist, introduced that when buying fresh scallops, you must smell them, and the bad smell is very unpleasant; If there is a smell of gasoline or kerosene, be careful, it may be contaminated with methylmercury. Also take a look at the fresh scallop shell color is shiny and elastic.
Shrimp: Don't eat shrimp heads
Shrimp is a delicious food for all ages, especially fresh shrimp after cooking, it is sweet and fresh, crisp and tender.
Zhang Ye, former director of the Nutrition Department of the People's Liberation Army 309 Hospital, said that although the shrimp is delicious, it should also be noted that the head cholesterol content of the shrimp is high, and it is easy to leave some heavy metals, etc. In the season when the shrimp are breeding in large quantities, shrimp seeds also contain some cholesterol. Friends with high blood lipids, high blood pressure and diabetes need to pay attention when eating, and shrimp heads and shrimp seeds should be eaten as little as possible.
Source: People's Daily - Health Times