Will eating too many Songhua eggs cause cancer? What is the pine flower in Songhua eggs?

Preserved eggs are made from chicken or duck eggs with some plant ash, lime, etc. The old cooking method would lead the eggs, but now most of them are lead-free. But some people still worry about the risk of cancer if they eat too much.

Will eating too many preserved eggs cause cancer?

The claim that it causes cancer is still believed to be caused by the high lead content in Songhua eggs, but in fact this matter has long been clarified. my country has long abandoned the traditional method of making Songhua eggs and adopted a new "lead-free process". Although it cannot be truly "lead-free", its lead content is no longer harmful to the human body; however, because the excretion of lead is very slow, eating too many Songhua eggs in a short period of time may still cause lead accumulation, which in turn causes certain symptoms, but it is a bit presumptuous to say that lead can induce cancer;

So far, it has only been confirmed in animal experiments that inorganic lead compounds are indeed carcinogenic, but there is no clear evidence to prove this in humans. However, we have always suspected that lead may be a potential urinary tract carcinogen; but this requires long-term and large-dose lead accumulation. There is basically no possibility of cancer with just a few preserved eggs!

What is the pine flower in Songhua eggs?

The pine flowers on the preserved eggs are actually crystals of amino acid salts in a certain geometric shape.

When poultry eggs are left for a long time, some of the protein in the egg white will decompose into amino acids. The chemical structure of amino acids has an alkaline amino group - NH2 and an acidic carboxyl group - COOH, so it can interact with both acidic and alkaline substances. When making Songhua eggs, people deliberately add some alkaline substances such as lime, potassium carbonate, sodium carbonate, etc. to the mud. They enter the protein through the thin holes in the eggshell and react with amino acids to form amino acids. These amino acid salts are insoluble in protein, so they crystallize in a certain geometric shape to form beautiful Songhua eggs.

Should Songhua eggs be eaten raw or cooked?

Preserved eggs can be eaten raw or cooked, but it is recommended to eat them cooked.

Common ways of eating cold preserved eggs include preserved eggs with chopped peppers, preserved eggs with ginger juice, preserved eggs with cold tofu, and preserved eggs with jellyfish.

Common ways to eat preserved eggs hot are preserved eggs and lean meat porridge, preserved eggs and vegetable porridge, cucumber and preserved egg soup, tofu and preserved eggs, and green pepper and preserved eggs!