What is the Kalita Wave and how do you use it?

The Kalita Wave is a flat-bottom coffee dripper with three small holes, made by the Japanese brand Kalita. Its design promotes uniform extraction and greater pour-tolerance compared to conical drippers. It is widely used by specialty baristas and advanced home brewers seeking consistency and aromatic clarity.

The Kalita Wave belongs to the pour-over coffee dripper family but differs fundamentally in geometry from the V60 or Chemex. While those use a conical base with a single central hole, the Kalita Wave features a flat bottom with three small holes arranged in a triangle. This configuration has direct implications for extraction dynamics.

With a flat bottom, water naturally accumulates in a thin, uniform layer across the entire coffee bed surface before draining. This creates a more even saturation front from edge to edge, unlike a conical base where water tends to converge toward the center and can create preferential channels. The result: more homogeneous extraction, greater tolerance to pouring variation, and a coffee that typically presents a softer texture and slightly more body than a V60 with the same coffee.

The wave filter — the crimped paper filter that gives the brewer its name — plays a crucial role. Its folds create an air gap between the filter and the dripper walls, limiting thermal contact between the two and ensuring that water flows primarily through the coffee rather than running along the sides. This design also ensures more uniform pressure distribution across the coffee bed.

The Kalita Wave comes in two sizes: Wave 155 (for 1–2 cups, approximately 20–30g of coffee) and Wave 185 (for 2–4 cups, approximately 25–40g). It is available in stainless steel, ceramic, and glass, each with different heat-retention properties. Stainless steel is lightweight and durable but loses heat faster; ceramic offers better thermal stability.

For brewing, a typical water-to-coffee ratio is 15:1 to 16:1 (e.g., 30g of coffee for 450–480g of water), with a grind slightly coarser than for a V60 due to the flat bottom. The recommended technique begins with a bloom pour of 30–45 seconds using twice the weight of coffee in water (e.g., 60g for 30g of coffee), followed by regular circular pours in several phases. Total extraction time targets 3 to 3.5 minutes.