2. Their tastes are also quite different. Live beads are more delicious and have higher nutritional value.

3, you can look at the appearance first, generally the mud is relatively fresh, but many of them are artificially "made" fresh.

4. You can see it by shaking it. Good eggs shake soundlessly and have a strong sense of integrity. On the contrary, it is a bad guy.

5. Cover the egg with a piece of black cloth and illuminate the egg with strong light, so that the egg is clear, the yolk is clear and translucent, and the empty room inside is small. However, under the irradiation of bad people, the egg white and yolk are turbid or stick to the egg wall, and there are blood circles and black spots inside, so the vacant room is larger.