Quick preparation of salted duck eggs: put the duck eggs in a jar until the water is just over the duck eggs, add salt which is about half the weight of the duck eggs, seal the lid, and marinate for 7 to 1 days before serving. Call it salted duck eggs.
Salted duck eggs are preserved from fresh duck eggs, which are rich in nutrition, fat, protein, amino acids, calcium, phosphorus, iron, trace elements, vitamins, etc. They are easily absorbed by the human body, and have a moderate salty taste, which is suitable for all ages. The eggshell is blue, round and smooth in appearance, also called "green egg". Salted duck egg is a kind of reproduced egg with special flavor and convenient eating. Salted duck egg is a good food with attractive color, fragrance and taste.
Extended data
The main methods to distinguish good from bad are:
1. Appearance method. Duck eggs have a layer of hoarfrost powder, which is not smooth when rubbed by hand. Fresh eggs are intact, and stale duck eggs are smooth, dark, incomplete and cracked.
2, hand method. When buying duck eggs, hold them with your thumb, forefinger and middle finger and shake them. Fresh eggs are silent, and bad guys make a shaking sound when shaking their hands. The louder the sound, the worse it is.
3. irradiation method. Hold the duck egg gently with your hand, and observe the light. The good duck egg protein is clear and translucent, with a small empty room at one end, and the bad guy is dark and the empty room is large. Some duck eggs are stained, which is an old or deteriorated appearance.
4. Floating method. Take 5 grams of water, add 5 grams of salt, and after dissolving, put the duck eggs into the water. Fresh duck eggs sink horizontally at the bottom of the water, and the big head floats slightly at the top and the small head floats slightly at the bottom. The duck eggs have been left on the water for too long and completely float on the water, which is a bad egg. This kind of egg has rotted and deteriorated.
Reference: Baidu Encyclopedia-Salted Duck Eggs