Rich in carbohydrates, protein, iron, calcium, vitamins, and other nutrients, it offers exceptional nutritional value. Additionally, black fungus contains abundant plant collagen components with strong adsorption properties, dissolving and oxidizing indigestible foreign objects like grain husks, hair, or sand accidentally ingested. Regular consumption thus helps cleanse the digestive tract. Next, we'll introduce how to carefully dye black fungus, hoping this information proves helpful.
However, unscrupulous merchants dye common earth ears to pass them off as black fungus. Earth ears are artificially cultivated using sawdust or straw inoculated with earth ear fungus, offering little nutritional value. Their production cost is extremely low—a pound of earth ears costs around ten yuan at the source—yet after dyeing, they transform into "nutrient-rich black fungus" selling for nearly fifty to sixty yuan per pound.Fraudsters typically pour earth ear mushrooms into an iron pot filled with hot water, add a certain amount of ink, and thus transform the originally yellowish-brown earth ear mushrooms into black "black fungus." Currently, this counterfeit black fungus is widely sold online.
Additionally, due to black fungus's high absorbency, it readily soaks up various substances including sugars and salts. Some unscrupulous vendors even soak it in magnesium sulfate solutions to increase its weight, turning one pound of black fungus into two or three pounds.
Experts caution that darker isn't necessarily better for black fungus, advising consumers to distinguish authenticity by color.Genuine black fungus features a dark brown upper surface and a grayish-white underside, while earth fungus appears yellowish-brown. Magnesium sulfate-treated fungus exhibits uniform dark brown coloring on both sides. Upon inspection, authentic black fungus emits a natural, fresh aroma, whereas adulterated varieties carry an ink-like odor.When processed "black fungus" is soaked in water, the liquid quickly turns jet black. Additionally, genuine black fungus has a pleasant, crisp texture when chewed, whereas magnesium sulfate-treated fungus tastes bitter and astringent, making it difficult to swallow. That concludes our guide on spotting dyed black fungus. We hope you now have a clearer understanding. Finally, we sincerely wish you good health and happiness.