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皮蛋。好的皮蛋，形状完整，外壳呈茶青色，剥皮后是棕褐色的半透明体。用刀切蛋黄，不沾刀或少许沾在刀刃上，蛋黄的剖面光洁。质量好的皮蛋，外表敷料完整，有扑鼻的碱味，如果泥身严重脱落或有异味，则为次品，用手执蛋，另一手用食指和中指的背面敲击，有弹性为好蛋，抓住?
preserved egg. Good preserved eggs, the shape is complete, the shell was teal, peeled tan after the translucent body. Egg yolk with a knife, do not stick knife or a little dip in the blade, the profile of the yolk smooth. Good quality preserved eggs, the appearance of the dressing integrity, a sour alkaline taste, if the mud is a serious off or smell, then defective, hand-held egg, the other hand with the index finger and the back of the middle finger percussion, flexible egg Catch?