The Bodum French press system is the way of brewing coffee. It's pure and simple which is exactly the reason why coffee tasters use this method to determine the quality of coffee beans. The materials of the French press (glass and stainless steel) are completely taste-free so nothing comes between your ground coffee beans and the hot water. The French press literally generates no waste at all: No metal or plastic capsules, no paper, no nothing. You only boil as much water as you need and there you go. We all know plastic water bottles are an environmental problem, but have you thought about all those metal or plastic capsules left by other coffee machines? They generate more waste than espresso. With the Bodum French press it is just glass, water and coffee brewing does not get any purer.