Auricularia is grown on Linden oak , equipped with professional technology and climate , growing
in spring and autumn . The content of iron in Auricularia auricula is very high , so it can nourish the blood of Auricularia auricula and prevent iron - deficiency anemia , Auricularia auricula contains vitamin k , which can reduce the clotting of blood and prevent the occurrence of thrombosis . The gum in Auricularia auriculata can remove the dust and impurities remaining in the digestive system 。