1, appearance difference: compared with ordinary eggs, free-range eggs are generally less, generally between 42 and 53, and their sizes are different, and the shell color is different, unlike eggs sold in the market, which are larger and have the same size, and the shell color is more uniform.

2. The difference between egg white and yolk: The egg white of free-range eggs is sticky, transparent, tasteless, or has a faint fragrance, while the yolk is hard and big, about 1.5 times that of ordinary eggs, with bright color and orange yellow, not particularly yellow or red. The egg white of ordinary eggs is thin and has a little fishy smell. The heavier the fishy smell, the more chemical feed is fed, and the color of yolk is yellow or red.

3. Taste difference: It should be noted that free-range eggs are tender and have no obvious egg flavor, while ordinary eggs are not so delicious. After cooking, the yolk is dark in color, firm and even hard in taste.

The above contents refer to Baidu Encyclopedia-Free-range Eggs.