由于速度极慢，应选取研磨得极细的咖啡粉来萃取。
Due to extremely slow speed, should select a very fine abrasive powder to extract the coffee.
衡水鼻烟壶在研磨极细的优质烟草末中，掺入麝香等名贵药材，并在密封蜡丸中陈化数年以至数十年而成。
Snuff is a fine grinding of high quality tobacco at the end, the incorporation of rare medicinal herbs such as musk, and aging in a sealed Lawan in a few years or even decades made.
从而，能在较小体积内对极细粉尘、研磨火花细粒处理、且能在室内直接排风。
It can treat fine powdered dust in small space and direct exhaust in room.
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