Why are preserved eggs also called preserved eggs? Why can't preserved eggs be frozen and stored?

The main raw material of Songhua eggs is duck eggs. They have a fresh, smooth and slightly salty taste, and their color, aroma and taste are unique. It is a delicious cold dish. Under normal circumstances, Songhua eggs have a smell of soda lime and no other odor. Come and see how to distinguish Songhua eggs in daily life. The following is an introduction on how to judge whether Songhua eggs are bad. I hope it will be helpful to you.

Contents of this article

1. Why are preserved eggs also called preserved eggs?

2. Why can’t preserved eggs be frozen and stored?

3. How to tell if a preserved egg is bad

Why are Songhua eggs also called Pidan?

Preserved eggs are similar to preserved eggs in texture, soft and elastic, so they are also called preserved eggs.

Preserved eggs are a traditional Chinese egg product, and are called pine eggs because of the pine flowers on their surface. The main raw material of preserved eggs is duck eggs, which have a fresh, smooth and slightly salty taste, and are unique in color, aroma and taste. Preserved eggs are not only loved by domestic consumers, but also enjoy a high reputation in the international market. After a special processing method, preserved eggs will become dark and shiny, with white patterns on them. When you smell them, you will smell a special fragrance, which is one of the favorite delicacies of the people.

Why can't preserved eggs be frozen?

Some families like to store preserved eggs in the refrigerator or even freeze them, thinking that this will keep them from spoiling for a long time. In fact, it is just the opposite. Preserved eggs are a colloid formed by alkaline substances, containing about 7% water. They will gradually freeze when frozen. At this time, if you take out the preserved eggs and eat them, the ice will gradually melt, and the colloid will become honey-like, changing the original flavor of the preserved eggs. Moreover, low temperatures will make the color of the preserved eggs yellow, salty, and hard, which is very different from normal preserved eggs. The best way is to seal the preserved eggs in a plastic bag to keep them, so that the quality and flavor will not change.

How to tell if a Songhua egg is bad

1. Look at the appearance: The most direct way to judge whether a preserved egg is bad is to look at its appearance. If the appearance is intact and the egg white is dark brown and transparent with a certain degree of toughness, then it is not bad. If there are damages, mold spots, etc., and the preserved egg is light green, has poor toughness, and is easy to loosen, then such a preserved egg is bad.

2. Shake: Once the preserved eggs go bad, the egg whites change color and the air chambers become larger, with more dew-shaped bubbles. Therefore, there will be a sound of water or a light feeling when shaking. Normally, preserved eggs feel heavy.

3. Smell: You can also get close to smell the preserved eggs. If there is a sour, rotten or other odor, then the preserved eggs have deteriorated. Under normal circumstances, preserved eggs have a smell of soda lime and no other odor.