Skinned eggs are a traditional Chinese delicacy that has been around since the Ming Dynasty. It is made by pickling duck eggs with quicklime, soda ash, salt, black tea and grass ash. Although the skin egg is not very good-looking, but has a special flavor and texture, whether it is eaten directly or into the dish, is a rare delicacy. I'm very good at it.

However, traditional eggs have an Achilles' heel, which is the high content of lead. During the processing of the eggs, a substance called xanthan powder is added in order to solidify the egg, and its main ingredient is lead oxide, so the lead content of eggs made in the traditional way is quite high.

It's a good thing that there is now a processing technology for lead-free skin eggs. I seem to remember that at the end of 2015, the state set a new standard for skin eggs, stipulating that the lead content in each kilogram of skin eggs should not exceed 0.5 milligrams. This is a very strict standard, how strict is it? We usually eat tofu, the lead content of the standard is also this standard. Eggs containing less than this standard can be labeled as lead-free eggs.

As long as they are qualified lead-free eggs, then eating them will not cause any damage to your body, even if you eat them every day. The only question is, are the lead-free eggs you buy really lead-free? To be on the safe side, it is advisable to eat them occasionally. And don't give them to children who are too young to eat them.

Skinned eggs, also known as fluffy eggs, are a traditional Chinese flavor of egg products, mainly made from duck eggs. It is a common dish on people's table. Because of the special processing methods, the appearance of leather eggs is dark and shiny, with white patterns on them. However, due to the previous processing methods, the lead content in the eggs is excessive, which is harmful to the human body, and many people dare not eat eggs. But now we do not have to worry. Because people have developed a lead-free eggs to eat, love to eat eggs people, do not have to worry about lead poisoning.

In fact, the eggs have a high nutritional value, higher than fresh eggs. The traditional production of leather eggs is to use rosin, sulfur, lime, saltpeter, alum water, the duck eggs soaked in it, after 3 | ~ 5 days after the sugar and mud mixed up, put ten days to become. But this lead content is too high. Nowadays, after treatment, the protein is denatured and partially hydrolyzed, so it is more conducive to human digestion and absorption.

Skin eggs are not only delicious, but also have some medicinal value. Wang Shixiong "with the rest of the house dietary spectrum" said: "skin eggs, taste pungent, astringent, sweet, salty, can diarrhea, sober, go to the large intestine fire, treatment of diarrhea and dysentery, can be dispersed and convergence." According to Chinese medicine, leather eggs can cure high blood pressure, toothache, dizziness and headache. Loose eggs mixed with vinegar can clear heat and reduce inflammation, nourish the heart, nourish the mind, nourish the body; used to treat periodontal disease, mouth sores, dry throat and thirst.

But because of the cool nature of the pine eggs, these people can not eat. Infants, the elderly, like diarrhea, cardiovascular disease, suffering from liver and kidney disease should eat less. Moreover, the lead-free loose eggs are not completely free of lead, but the lead content is lower than the national standard, so children should still eat less.