Auricularia auricula can be divided into three types according to the growth mode: wild auricularia auricula naturally grows on forest deadwood: because people's whereabouts have spread all over the forest, the probability and quantity of wild auricularia auricula growth are decreasing day by day, and the price is the highest, which is rarely seen in the market, generally around 100 yuan;

Segmented black fungus growing on basswood: cut the tree into wood about one meter long and plant fungus on it. Because it is segment by segment, it is called basswood fungus. Because of the need to protect the forest, it is forbidden to cut trees indiscriminately, and the logging cost is high, and the basswood fungus is also decreasing day by day. Because the quality of basswood fungus is similar to that of natural fungus, the price is higher, and the market price is generally 50 ~ 90 yuan per catty.

Bagged auricularia auricula grown in plastic bags: auricularia auricula cultivated by crushing sawdust or straw and putting it in plastic bags has a large output and poor texture, and is more common in the market.

Auricularia auricula under the same growth mode is identified in the following ways: Step 1: First, look at the color: the color is natural, the front is black and seems transparent, and the back is white, and it seems that there is a layer of fluff attached to it, which is a good auricularia auricula; The front and back are very black, and the color is almost the same, which is a poor quality fungus;

It glows in black, and it is poisonous fungus that can't be washed away; Water can wash away colored fungus;

Step 2: Grab it by hand and feel it: it is thick and hard, like a block of wood, and it is artificially treated fungus. Such as: sugar fungus, salt fungus, etc., the weight is heavier;

It's thin and brittle, and the one that is fragile by hand is good fungus, which is light in weight;

Step 3: Soak in water: the water turns black: it is a dyed auricularia auricula treated by technology, which contains toxic and carcinogenic substances and is inedible;

The water is clear, taste it:

1), salty water-Auricularia auricula soaked in salt water. Objective: to increase the weight of auricularia auricula. Results: The water absorption was small, and there were countless bubbles. 2) Sweet water-Auricularia auricula soaked in sugar water. Objective: to increase the weight of auricularia auricula. Results: The water absorption was small, and there were countless bubbles. 3), taste dried fungus, and distinguish the above two flavors; 4) Good auricularia auricula is tasteless and light in weight. When soaked in water, it absorbs a large amount of water and can bubble out several times. Step 4: After cooking and stewing, the fungus has rotted, and the cause of pus is that the fungus contains preservatives and the cellulose has been destroyed; Good fungus cellulose is intact; Step 5: Edible: Good auricularia auricula has smooth and soft taste and delicate texture; Auricularia auricula with poor texture tastes rough, stiff and unpalatable;