(1) Look at the color: Auricularia auricula, the front of each flower is black and shiny, the back is slightly grayish white, and the color of the fake fungus is white and dull.

(2) Look at the flower shape: true auricularia auricula, with stretched ear lobes, light constitution, and false auricularia auricula in a spherical shape.

(3) Moisture test: Auricularia auricula is generally light in texture, and its moisture content is below 1 1%. False fungus contains a lot of water, so it will feel heavy when weighed by hand. After hand grinding, impurities will be left on your fingers.

(4) Taste: True fungus is bland and tasteless, while false fungus has adulterated taste. If it tastes sweet, it means that it has been soaked in sugar water such as maltose; Soak the salty ones in salt water; Those with astringent taste have been soaked in alum.

You can buy good black fungus in Tao Bao. I bought it from the "dream shop for old farmers living in the mountains", and the quality is very good.