I sometimes use a plunger but its not working properly so there are some coffee grains in the coffee. I'm drinking a coffee now, made in a little coffee maker that you put on a stove. In Italy coffee is cheap and still tastes really good if you get the cheapest packet, it seems to be much stronger too.
Coffee is the most poular beverage in the word, there are some health benefits from drinking coffee and some negative affects. You know when you've had too much of it though, so its not like alcohol in that respect. The effects of drinking too muchare unpeasant. Pure caffiene is a powerful poison. If you blew a gram of it into the air in a room, it would kill up to 30 people. Coffee must have a low caffiene content but you should drink water or juice to rehydrate not just coffee.