The best way to recognize an earth egg is:

Authentic earth eggs are generally long in shape, with pointed ends. Whereas feed eggs are generally tapered with one pointed end and one slightly rounded end. Of course this is not 100%, just more than ninety percent, so to determine the authentic earth eggs also need to be combined with the following methods together.

Earth eggs are relatively small in size, but you can't generalize, some of them are also very large, so the main thing is to look at the yolk part.

Earth eggs have a larger proportion of yolk, that is to say, the appearance of the earth eggs even if the head is relatively small, but when you open the egg you will find that the yolk is still very large, the most important thing is the feed eggs, the yolk is the yolk of the earth yellow yellow, the yolk of the earth eggs is the yellow of the golden yellow, this is very good to identify.

The yolk of the earth egg is very three-dimensional, there is a layer of membrane on the outer layer of the yolk, which is thicker compared to the layer of the feed egg, when you insert a toothpick into the middle of the yolk respectively, the yolk of the earth egg can firmly stand the toothpick in the center, while the yolk of the feed egg is prone to be crooked.

Looking at the egg whites, they are clearer and thicker, while the feed egg whites look pale and yellowish. When you dig the yolk with a spoon, it is difficult to separate the yolk from the feed egg, and it breaks when you touch it, while the earth egg can easily separate the yolk, and the yolk is not easy to break.