Kalita Wave 185 vs 155 — Which Size Should You Choose?
Key Takeaways
- The Kalita Wave 185 is designed for 2–4 people; the 155 is for 1–2 people
- Both share the same flat-bed, 3-hole structure — the difference is purely capacity
- Wave filters are not interchangeable between sizes; always confirm filter size when purchasing
The Kalita Wave Dripper is Kalita's signature dripper series, combining a flat-bed design with proprietary wave-shaped filters. Unlike cone drippers like the V60, the Wave's flat bottom creates an even coffee bed that produces consistent results regardless of pour technique — making it an excellent choice for beginners and experienced brewers alike.
The Wave series comes in two sizes: 185 (2–4 people) and 155 (1–2 people). This article compares both in detail to help you choose the right size.
- Kalita Wave 185 vs 155: size and capacity differences
- Material options: stainless steel, ceramic, glass
- Filter compatibility and what to buy
- Which size to choose based on your brewing habits
Kalita Wave Dripper 185 (2–4 Servings)
| Specification | Detail |
|---|---|
| Capacity | 2–4 servings |
| Filter size | KWF-185 (Wave Filter 185) |
| Materials | Stainless / Ceramic / Glass |
| Holes | 3 holes |
| Brew volume | ~300–600ml |
The 185 is designed for brewing multiple cups at once. For households making 2+ cups every morning or brewing for guests, the 185 lets you brew a full server in a single pour.
Kalita Wave Dripper 155 (1–2 Servings)
| Specification | Detail |
|---|---|
| Capacity | 1–2 servings |
| Filter size | KWF-155 (Wave Filter 155) |
| Materials | Stainless / Ceramic / Glass |
| Holes | 3 holes |
| Brew volume | ~150–300ml |
The 155 is the compact option for solo brewers or small households. Its smaller footprint takes up less counter space and requires less coffee and water per brew.
185 vs 155: Key Differences
Brew Volume
| Wave 185 | Wave 155 | |
|---|---|---|
| Servings | 2–4 people | 1–2 people |
| Coffee dose | 20–40g | 10–20g |
| Brew volume | 300–600ml | 150–300ml |
| Filter | KWF-185 | KWF-155 |
The filters are not interchangeable — the 185 and 155 use different filter sizes. Always confirm which size you're purchasing when restocking filters.
Extraction Consistency
Both the 185 and 155 share identical dripper geometry: flat bed, 3 holes, and the same wave-filter design. Extraction consistency is equivalent between sizes. The wave filter's accordion shape creates space between the filter and dripper wall, equalizing water flow and minimizing channeling regardless of size.
The Kalita Wave's proprietary wave-shaped filter is what makes this dripper unique. The corrugated design creates an air gap between the filter and dripper wall, which produces even water distribution across the entire coffee bed. This is why the Wave produces consistent results even with an imperfect pour — the filter compensates for technique variation.
Material Options: Stainless, Ceramic, Glass
Both sizes are available in three materials:
| Material | Characteristics | Best for |
|---|---|---|
| Stainless steel | Lightweight, durable, conducts heat well | Daily use, camping |
| Ceramic | High heat retention, heavier | Slow, deliberate brewing |
| Heat-resistant glass | Visually transparent, aesthetically attractive | Visual experience, gifts |
Stainless steel is the most versatile and the best starting point for most buyers. It's lightweight, nearly indestructible, and heats up quickly.
Ceramic holds heat well, making it suitable for cold kitchen environments or slower brewing sessions. More fragile than stainless.
Glass lets you watch the extraction in real time — the bloom and drawdown are visible from outside the dripper. Popular as a gift item or for brewers who enjoy the visual ritual.
Which Size to Choose
Choose Wave 185 if:
- You brew 2+ cups daily
- Brewing for a household or sharing with others
- You pour into a server and prefer batch brewing
Choose Wave 155 if:
- You live alone and brew 1–2 cups per session
- Counter space or storage is limited
- You prefer a compact, lighter setup
KWF-185 and KWF-155 wave filters have different dimensions and cannot be swapped between sizes. When purchasing replacement filters, ensure you match the filter number to your dripper size. Buying the wrong filter means the corrugated shape won't seat correctly and extraction will be uneven.
Pros
- +Flat-bed design produces consistent extraction with minimal technique dependence
- +Wave filter actively equalizes water flow — forgiving for beginners
- +Three material options (stainless, ceramic, glass) for different preferences
- +Widely available in Japan with strong Kalita support
Cons
- -Proprietary wave filters required — not compatible with V60 or standard Kalita filters
- -185 and 155 filters are not interchangeable — double-check before ordering
- -Ceramic and glass variants are breakable
Final Verdict
The Kalita Wave is one of the most forgiving and consistent drippers available, and the size choice is straightforward: 155 for solo brewing, 185 for multiple cups. For most households, the 185 in stainless steel is the best first purchase — it handles 1–4 cups with room to grow, and the stainless version requires essentially no maintenance.
About the Author
Coffee Guide Editorial
A team of writers and baristas passionate about coffee. We cover everything from bean selection and brewing methods to café culture.
Team Credentials
- Certified baristas
- Specialty roasting café experience
- Coffee import industry experience