The Wave filter's signature 20-wave design isn't just aesthetic—it's functional engineering. Those ripples create small air channels between the filter and brewer walls, allowing water to flow evenly across the coffee bed rather than rushing down the sides. This keeps grounds suspended away from the metal, maintaining temperature stability throughout the brew and preventing the uneven extraction that happens when water finds the path of least resistance.

The result is balanced extraction across every ground in the bed—the kind of consistency that makes the Wave such a forgiving brewer for daily use.

These white filters are made in Japan and FSC certified, ensuring responsible forestry practices. Each box contains 100 filters—enough for several months of regular brewing.

Storage tip: Keep them away from moisture and dust to maintain their structure. Always pre-wet your filter before brewing to rinse away any paper taste and help it adhere properly to the brewer's walls.