Classic and tried-and-true filter holder for manual coffee preparation through hand brewing. It features two outlets for brewing two cups of coffee simultaneously. The coffee level in the cup can be monitored through a viewing window on the side. Bitterness is reduced by optimizing the notches within the filter holder. The preparation is quick: simply insert the filter bag, add coffee grounds, and slowly pour hot water in a clockwise direction. Cleaning is easy and can be done in the dishwasher to effectively remove residues of bitter substances and coffee oils.