Preserved eggs are also called preserved eggs, changed eggs, and gray-wrapped eggs. What kind of things will be used to burn the eggs wrapped in ashes, and the original case will appear. Why?
Who did you hear say that pine branches are used to form pine branches ... The so-called pine flower is the pattern produced by the crystallization of amino acids contained in eggs by alkali in firing materials. I believe what you said about burning plant pine branches and pea stalks into ashes as packaging materials, because burning plants into ashes is indeed alkaline, but chicken bones are unreliable, right?