Time More Dripper is designed with a concave principle, the lower area of the dripper, instead of slowing down the brew actually increases, making the water flow more smoothly and the extraction more uniform. 1 - Insulating level - the filter paper completely attached to the smooth top part of the dripper so water cannot get through. 2 - Brewing level - where the brewing action should take place. 3 - Powder level - the ground coffee will fill the bottom area which is less ribbed and more flume to encourage the water flow and thus reducing the chance of over extracting.