The filter paper is attached to the filter cup in order to show the design effect of the filter cup. The ribs inside the filter cup (also known as rib column and diversion ditch) are designed for cooking flow rate due to their different length, thickness and form.
The protruding ribs in the hand filter cup are mainly used to set up high filter paper and guide the flow of water; the grooves between the ribs in the filter cup are conducive to air flow; in a space, the air flows upward and the water flows downwards. Therefore, the rib design of different filter cups affects the speed of water flow in the filter cup, the extraction rate and the change of flavor, which also means that the more the hand-brewed coffee filter paper is attached, the more it can achieve the brewing effect of the filter cup design.
Let the filter paper stick to the tip of the filter cup and fold the side joint of the filter paper.
The degree of fit between the filter paper and the filter cup is easy to be ignored by many people. Only when the filter paper is attached to the cup wall can the filter cup achieve the greatest effect on the extraction design. In addition to helping to fit the filter cup, the wet filter paper also has the effect of removing paper smell and warm cup. Small movements to meet three needs at a time, but also can make boutique coffee extraction more stable, the next time the hand flush, you can pay more attention to this part.
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