Preserved eggs are preserved eggs, but preserved eggs are not necessarily preserved eggs.

In fact, preserved eggs are a kind of preserved eggs. Technically speaking, preserved eggs are called bian eggs, and they belong to the same category as salted eggs and bad eggs. Those preserved eggs that can be seen with beautiful patterns like pine flowers when opened are called preserved eggs.

In addition, there is also a kind of preserved egg called biandan, which is different from preserved eggs. Biandan is a preserved egg made from eggs, while preserved eggs are made from duck eggs. Preserved eggs are common in life. Usually preserved eggs made from duck eggs.