In order to let water flow at an ideal speed for each roasting level,
each paper is made by different paper structure. Water speed is
adjusted automatically thanks to the different structure.
Dark Roast Paper Filter
This filter paper has the “Two-Side Crepe” but the height of crepe is
set to be lower. In the first half of brewing, because the adhesion of
fine coffee powder is not so high, water can flow smoother, but in the
last half, its adhesion becomes larger and slows down the water flow.
The first fast and later slow water flow finish up the coffee with body
and sweetness.
