The foundation for a perfectly clean and balanced cup of pour-over coffee. zeroHero’s flat, cup-shaped (Wave) paper filters are designed for even extraction without unwanted aftertastes, whether you’re brewing coffee at home with a dripper or in a busy café setting. They’re compatible with flat-bottom drippers such as the April, Solo, and Orea.
The flat bottom of the filter creates an even layer of coffee grounds, which minimizes channeling and ensures a balanced extraction full of sweetness. Additionally, the distinctive ripples along the sides maintain air pockets between the filter and the dripper’s wall, which prevents the paper from sticking, maintains a stable temperature, and ensures a smooth, unobstructed flow.