1.熊胆 取少许熊胆放入盛满清水的杯内,如呈盘旋状下沉,并溶成一条黄线者为真品,其它动物的胆,则不会有这种现象。 2.珍珠 珍珠经用火烧爆破,出现皮状破裂,晶莹闪光者为真品;火烧后呈碎粉或焦糊者为伪品。 5.三七 将三七粉放入少量猪血中,使猪血化成水状者为真品;否则,为伪品。 4.银耳 将银耳放入温水中浸泡之后,体积膨大5～6倍者为优质品;不膨大者质量较差;有 1. Bile Bile Take a little bear bile in a cup filled with water. If it sinks in a spiral shape and dissolves into a yellow line, it is a genuine product. Other animal gall bladders will not have this phenomenon. 2.Pearl Pearls are blasted with fire, and there are skin-like cracks. The glittering ones are genuine. After firing, they are crushed or scorched. They are counterfeits. 5. Sanqi Put Sanqi powder in a small amount of pig’s blood to make the pig’s blood into water like a genuine product; otherwise, it is a fake product. 4. Tremella After soaking the tremella in warm water, the volume enlargement is 5 to 6 times higher than that of the quality product;