The practice and nutritional knowledge of preserved eggs (duck eggs) were introduced in detail. Alias: preserved egg, preserved egg, colored egg, alkaline egg and mud egg. Tips: Push out 1 preserved egg (duck egg) every day. Preserved eggs, preserved eggs, colored eggs, alkaline eggs or mud eggs are egg-shaped foods pickled with lime and other raw materials, because there are often pine needle-shaped crystals or patterns in protein. It is a traditional flavor egg product in China, which is not only deeply loved by domestic consumers, but also enjoys a high reputation in the international market. Preserved eggs preserved eggs; Preserved eggs, raw duck eggs are soaked in lime and chaff for about 50 ~ 100 days, turning into translucent blue-green and looking much older, so it is called "chitose" in English. Its solid texture, rich flavor and slightly fishy smell are a delicacy in China. Generally, it is peeled, sliced, cooked, and cooled for consumption. Nutritional analysis of preserved eggs (duck eggs): Preserved eggs contain more minerals than duck eggs, but the fat and total calories decrease slightly. It can stimulate digestive organs, stimulate appetite, promote digestion and absorption of nutrients, neutralize gastric acid, and reduce temperature and blood pressure. Has the effects of moistening lung, nourishing yin, stopping bleeding, cooling intestine, stopping diarrhea and lowering blood pressure. In addition, preserved eggs can also protect blood vessels. At the same time, it also has the function of improving IQ and protecting brain. Supplementary information on preserved eggs (duck eggs): The simple and easy way to buy preserved eggs is to weigh, shake, look at the shell and taste. Step 1: Put the preserved egg in the palm of your hand and weigh it gently. Preserved eggs with good quality vibrate greatly, while preserved eggs without vibration are of poor quality; The second shake: shake the preserved egg by your ear with your hand. Good quality preserved eggs have no sound, and poor quality has sound; And the louder the sound, the worse the quality, even the bad guys or rotten eggs; Third, look at the shell: that is, peel off the mud attached to the preserved egg and look at its shell, with the eggshell intact, gray and white, and no black spots as the top grade; If it is a cracked egg, it is often possible to infiltrate too much alkali in the processing process, thus affecting the flavor of protein, and bacteria may also invade from the crack and deteriorate the preserved egg; Four flavors: if the preserved egg is qualified, the egg white is obviously elastic, brown, with pine-like patterns, and the periphery of the egg yolk is black-green or blue-black, and the center is orange-red. After this preserved egg is cut, the cross-sectional color of the egg is diversified, which has the characteristics of good color, fragrance, taste and shape. Preserved eggs (duck eggs) are suitable for people: people can eat them 1. People who are prosperous are the most suitable; 2. Children, people with spleen-yang deficiency, people with cold-dampness diarrhea, patients with cardiovascular diseases and liver and kidney diseases should eat less. The dietotherapy function of preserved eggs (duck eggs): preserved eggs are pungent, astringent, sweet, salty and cold, and enter the stomach meridian; Has the effects of moistening throat, clearing away heat, sobering up, removing large intestine fire, and treating diarrhea. If vinegar is mixed with food, it can clear away heat and diminish inflammation, nourish the heart and replenish the body; Can be used for treating periodontal disease, aphtha, dry throat and thirst. Food compatibility of preserved eggs (duck eggs): Preserved eggs should not be eaten with turtles, plums and brown sugar. Instructions for preserved eggs (duck eggs): Jiang Mo and vinegar should be used to detoxify preserved eggs; Preserved eggs are best eaten after being cooked, not stored in the refrigerator.

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