Generally speaking, ground coffee powder is directly brewed and drunk, and unground coffee beans need to be boiled and drunk, which is the basic common sense of drinking coffee, coffee powder if boiled and drunk, it is a waste of time, and the taste will not be very good. Coffee is 97% water, only with good water quality water to brew the original aroma and richness of coffee, so in the brewing of coffee, be sure to use pure water, so that the water can make the taste of coffee to get a better embodiment.