For what it's worth, all of the good TCM doctors I've seen have said that coffee is healthy if you drink an appropriate amount in the appropriate ways.
I drink a cup or two per day of good quality coffee in the morning and use a glass device called a "Chemex" - it looks like a giant Erlenmeyer flask, and is very easy to use, you put in a filter and pour hot water over the ground beans. Very easy to use.