Seven Two Seven V-shaped Manual Cold Brew Coffee Maker

place ground coffee in the lower container filter, add a little water, place a paper filter to diffuse water droplets, assemble the lower container, fill the upper container with water and ice while ensuring the valve is closed, place the upper container, then open the valve to start dripping and brewing; control the drip rate with the valve and pour the brewed coffee into serving cups when the lower container is full.