Dalian has a wide range of seafood and the price is very cheap, as well as Qingdao. Shellfish from big to small, all kinds of sea crabs (red crabs, flying crabs, covered crabs), as well as sea crabs, river crabs, hairy crabs in the south, and so on. The streets are full of seafood peddled by vendors. There are no fewer than 20 kinds of fish. Five dollars can buy a catty of yellow croaker to make you full.
Precautions for eating seafood:
1. Uncooked seafood contains bacteria. The bacteria in seafood are mainly Vibrio parahaemolyticus, which has strong heat resistance and can only be killed above 80℃. In addition to bacteria brought by water, there may be parasitic eggs in seafood, as well as bacterial and viral pollution caused by processing. Generally speaking, boiling water takes 4-5 minutes to completely sterilize. Therefore, we must be careful when eating unheated seafood such as "drunken crab", "raw sea urchin" and "sauce-fried seafood", and we must ensure the freshness and hygiene of fish when eating sashimi.
There are many toxins in dead shellfish. Shellfish itself carries relatively more bacteria, and protein decomposes quickly. Once it dies, it will breed a large number of bacteria and produce toxins, and the unsaturated fatty acids contained in it are also prone to oxidative rancidity. Stale shellfish will also produce more amines and free radicals, which pose a threat to human health. After buying live shellfish, you can't keep them at home for too long. Cook them as soon as possible. People with allergies should pay special attention, because sometimes allergic reactions are not caused by seafood itself, but by substances in the process of protein decomposition of seafood.
3. Seafood beer is the same as eating gout. It is best not to drink beer when eating seafood. Seafood such as shrimps and crabs will form uric acid after metabolism, and excessive uric acid will cause gout, kidney calculi and other diseases. If you eat a lot of seafood and drink beer at the same time, it will accelerate the formation of uric acid in the body. Therefore, when eating a lot of seafood, don't drink beer, otherwise it will have a negative impact on your health.