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中药炒炭方法一般有三种:一是直火清炒法。就是把药物直接放在锅内,不加辅料拌炒。二是用河砂烫炒。根据药物不同,分别选用细砂、中砂、粗砂拌炒,砂温保持在250～300℃左右。三是用(桐)油砂烫炒。待油砂加热至220～240℃时倒入药品同炒。笔者认为: 一、不含粉末、不易粉碎的根茎类及体积较大的炒炭品种,宜选用河砂或油砂烫炒,可以省力省时。如地榆、大蓟、大黄等。二、粉末状、含粉末、易粉碎的炒炭品种以直火清炒为佳。如蒲黄、侧柏叶、荆芥等。
There are three general methods of Chinese medicine fried charcoal: First, the direct fire fried method. It is to put the medicine directly in the pot without frying. The second is to fry with river sand. According to the different drugs, fine sand, medium sand, and coarse sand were selected respectively and the temperature of the sand was maintained at about 250-300°C. The third is to fry with (Tung) oil sands. After the oil sands are heated to 220-240°C, pour medicine into the pan. I believe that: First, do not contain powder, not easy to smash roots and large-scale speculation of charcoal, should use sand or oil sand stir fry, you can save time and effort. Such as earthworms, big clams, rhubarb and so on. Second, powdered, powdered, easily crushed varieties of fried charcoal fried with direct fire is preferred. Such as Puhuang, Platycladus orientalis, Nepeta and so on.