clever coffee dripper

A free standing, one cup filter with a patented valve for drawing down your coffee after it’s brewed.
 
The Clever Coffee Dripper is a free standing, one cup filter with one very important addition — a patented valve that keeps your brew from drawing down until you activate it by sitting it on a cup. What’s so good about that? Well, the way the valve works means that you can control all the variables of your brew independently of each other. No matter which brewing method you’re using, it always comes down to the same variables — grind size, the amount of coffee you dose, water weight, water temperature and the amount of time that the water and coffee are in contact.