Cleaning skills of pig liver
Pig liver is a very nutritious food. According to research and analysis, pig liver is rich in calcium, phosphorus, iron and vitamin B 1, B2, etc. besides protein and vitamin A. Pig liver is a very good food to supplement iron and vitamin A.
However, because the liver is the largest detoxification organ in animals, it is easy to accumulate toxins, so many people dare not eat it. If it is not thoroughly cleaned, it will do harm to health. So how to clean the pig liver?
It is best to "detoxify" pig liver before cooking: soak it in light salt water for 2 to 3 hours, and then soak it in clear water for a while; You can also slice the pork liver, gently wash it in a basin, and then rinse it before cooking.
Here are two steps for you to "detoxify" so that you can eat pig liver with peace of mind.
Step 1: Choose healthy and fresh pig liver.
1, fresh pig liver: purple in color, full of luster, uniform in overall color, without blisters on the surface, and the indentation can be quickly recovered after being lightly pressed by hand, which is full of elasticity.
2, stale pig liver: the color is dull and dull, the surface is dry and wrinkled, and there is an odor.
3, sick pig liver: there are lumps, edema, small white spots on the surface of rapeseed, such pig liver is absolutely impossible to buy.
Step 2: soak and rinse the pig liver to "detoxify"
1, rinse the surface of the whole pig liver with running water. Fill clear water, add a little white vinegar to the water, soak the whole pig liver in white vinegar water, take it out after about 30 minutes, and rinse it repeatedly with clear water.
2. Cut the pig liver into pieces of about 5 mm, and rinse it repeatedly with flowing clean water until there is no blood seepage. Remove toxins remaining in pig liver.
3. If there is not enough time for soaking, you can also directly wash the pork liver slices with flowing water repeatedly until there is no blood seepage, and then soak them in white vinegar water for about ten minutes, then take them out and drain them.
Eating taboos of pig liver
1. Do not eat half-cooked pig liver.
As we all know, the liver is the detoxification organ and the largest chemical plant and disinfection station in animals. All kinds of harmful substances should be gathered in the liver for treatment, especially the pig's food is very miscellaneous, and there are many toxic substances in the pig's liver. Therefore, the newly bought pork liver should be washed repeatedly with tap water and soaked for 30 minutes before cooking. When cooking and frying, use strong fire and enough time to make it well done. Never eat half-cooked pork liver, so as not to endanger your health.
2. Don't eat too much pork liver.
Pig liver contains a lot of cholesterol, and excessive intake of cholesterol has a register for human health, which is easy to cause people to suffer from hyperlipidemia, hyperviscosity, hypertension, obesity and arteriosclerosis. Normal people's cholesterol intake should not exceed 300 mg per day, and the cholesterol content in 100 g of pig liver is as high as 400 mg, so it is advisable to eat 50-70 g of pig liver every time and1-2 times a week.
3. Do not eat pig liver.
Healthy and fresh pig liver, clean and smooth, reddish brown or light brown in color, without peculiar smell, bile and blisters. If the color of pig liver is abnormal, its surface is brownish-black, blue-purple, taupe, light yellow, or it has yellow and white lumps, scattered in red spots, white blisters, filiform patterns, etc., or it is hepatomegaly, liver atrophy, and there are flaky worms in the liver, which smells bad and is easily broken after decompression. It must be a sick pig liver, and it must not be purchased, let alone edible.
Nutritional value of pig liver
1, the nutritional content of pig liver is more than 10 of that of pork, and the content of vitamin A in animal liver exceeds that of milk, eggs, meat, fish and other foods, which can protect eyes, maintain normal vision and prevent dry eyes and fatigue.
2. In addition, vitamin B2 should be supplemented to maintain a healthy complexion, maintain normal growth and reproductive function, enhance human immune response, and resist oxidation and aging.
3. Pig liver is rich in protein and animal iron, and it is a better nutritional food for children with nutritional anemia. It also contains a lot of vitamin A, which is helpful for children's bone development, promotes the repair of epidermal tissue, and has therapeutic effect on night blindness.