Because the climate in the Northeast is suitable for producing black fungus, and the quantity is not large, the price will be more expensive than other fungus. Now many unscrupulous merchants are selling shoddy goods and relying on the price of black fungus, so the price will be higher. There are many differences, but you must not buy fungus that is less than 25 yuan, because the purchase price of black fungus cannot be reached, and such fungus is likely to be synthetic fungus or fungus that has been stored for a long time and has been processed and re-dried before eating. Not to mention nutrition, eating it will make you sick in minutes.