Look: red: the mushroom noodles are dark red in the middle and shallow outside. The pleats at the bottom of the mushrooms should be thick and the background is blue. This kind of red mushroom soup is bright and sweet, but the mushroom meat is very slag and not delicious. Erhong: Usually this kind is sold more and the quality is good. The difference with Dahong is that it is not as bright red and sweet as Dahong after boiling soup. If you use tea, you should soak less water. Mushroom meat and soup are suitable. Songpihong: This is delicious. After drying, it was barely used as a mushroom pot. Some people use this red mushroom. I am most afraid of using dyed mushrooms, so the redder the better. Mushrooms that are too uniform in red may be fake.

Taste: Take a bite of a small piece, and the red color will be very sweet. If the skin is loose and red, it will taste astringent.

Smell: It has the unique smell of wild mushrooms.