How to distinguish the pros and cons of fungus
Black fungus products have wild and cultivated points, and there are spring ears and autumn ears from the harvest season. The wild fungus is a fungus that grows on the rot, the spring ear is the cultivated fungus harvested before the autumn, and the autumn ear is the cultivated fungus harvested after the autumn. There is no significant difference in the nutrients contained in these three fungus products. With the maturity of cultivation technology and good control of the production environment, the yield of cultivated fungus is high and the quality is better. In addition, the autumn ear is firmer and smaller because of its low temperature and slow growth during the autumn.
In order to increase the weight of the fungus, some unscrupulous operators spray or soak the fungus with brown sugar water soaking, copper sulfate and magnesium sulfate solution. After soaking the fungus, the color difference between the front and back is not obvious, the color may be the same; while the fresh black fungus is smooth and dark brown, and the outer layer has grayish white fluff. After drying, the color and fluff of the inner and outer layers are still clear. visible. Consumers can distinguish it by visual observation, or taste it with the tongue. The sweetness may be sugar-treated, and the embarrassment may be the fungus soaked with copper sulfate and magnesium sulfate.
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