Onyx Coffee Lab Kalita Wave 185
By Onyx Coffee Lab, 2026
A four-pour flat-bed recipe for a single 250 g cup, designed as a repeatable everyday starting point for the Kalita Wave 185.
- Coffee
16g, said in the original. Show the evidence.
“we are going to be using 16 grams of coffee to 250 g of water”
said in the original · transcript, 0:36–0:42
- Water
250g, said in the original. Show the evidence.
“we are going to be using 16 grams of coffee to 250 g of water”
said in the original · transcript, 0:36–0:42
- Ratio
- 1:15.6
- Temperature
- —
- Brew time
- —
- Grind (estimated)
medium-fine, worked out from the recipe. Show the evidence.
our coffee today is ground to a medium fine, we recommend starting at about 540 microns
worked out from the recipe · creator's own term 'medium fine' and 540 micron reference both place this in the medium-fine band
Grind: medium fine, starting at about 540 microns
Tap any underlined number to read where it came from. Numbers marked estimated are ones the original recipe does not give.
Equipment
- Kalita Wave 185
- Kalita Wave paper filter
- Scales
- Designed on
Kalita Wave 185, said in the original. Show the evidence.
“This is the 185 size”
said in the original · transcript, 0:19
Uses 250g of water
Step by step
- 0:00Pour to 30gBloom pour, saturate all grounds evenlyyou have 20s
- 0:20Pour to 100gadd 70gCentre pour bringing cumulative weight to 100 gyou have 20s
- 0:40Pour to 200gadd 100gCentre pour bringing cumulative weight to 200 gyou have 40s
- 1:20Pour to 250gadd 50gSpiral pour from centre outward to edges, finishing at 250 g
Weights are cumulative: what the scale reads when that pour finishes.
How Onyx Coffee Lab brews it
- Filter
Kalita Wave paper filter, said in the original. Show the evidence.
“we have our paper filter”
said in the original · transcript, 0:19–0:21
- Filter rinsed first
Yes, said in the original. Show the evidence.
“we're just going to use a little bit of that to rinse our filter”
said in the original · transcript, 0:25–0:29
- Drains in
2:30, said in the original. Show the evidence.
“we recommend aiming for a drain time with this recipe of about 2 minutes and 10 seconds to about 2 minutes and 30 seconds”
said in the original · transcript, 2:19–2:26; midpoint of 130–150 s range is 140 s; I have used 150 s (the upper end they call 'right on track')
What it makes
- Body
medium, worked out from the recipe. Show the evidence.
This is a flat bottomed brewer that we really love and this recipe is a great starting point for a single cup of coffee
worked out from the recipe · moderate ratio (1:15.6), four even pours with no aggressive agitation suggests a medium body
- Strength
medium, worked out from the recipe. Show the evidence.
we are going to be using 16 grams of coffee to 250 g of water
worked out from the recipe · 1:15.6 ratio is standard filter strength, placing this in the medium band
- Acidity
medium, worked out from the recipe. Show the evidence.
our coffee today is ground to a medium fine, we recommend starting at about 540 microns
worked out from the recipe · medium-fine grind at a moderate ratio with no stated temperature extreme suggests medium acidity
- Sweetness
medium, worked out from the recipe. Show the evidence.
aiming for that 210 to 230 should yield you a really good starting point
worked out from the recipe · target drawdown in the 2–2.5 min range with a flat bed and even pours is consistent with medium sweetness development
- Style
clarity, worked out from the recipe. Show the evidence.
This is a flat bottomed brewer
worked out from the recipe · flat-bed paper dripper with no agitation beyond pouring typically produces a clean, clear cup
- Suits
light, medium roasts, worked out from the recipe. Show the evidence.
this recipe is a great starting point for a single cup of coffee
worked out from the recipe · no roast restriction stated; 540-micron medium-fine grind and moderate ratio suit light to medium roasts; no indication of dark-roast optimisation
Where the original recipe does not say how the coffee tastes, the flavour here is an estimate.
More recipes
- Equator Coffees Kalita WaveA four-pour Kalita Wave method for a single 12 oz cup, aimed at even extraction and a light, delicate result.1:17 · 23g / 390g · 3:45
- Kalita Wave 2020By Kurasu KyotoA simple four-pour flat-bed recipe from Kurasu's Kyoto cafe, designed for consistency and ease with the Kalita Wave 155.1:15.4 · 13g / 200g
- Coffee Collective Kalita WaveA straightforward Kalita Wave guide aimed at a delicate, aromatic cup through the flat-bottom brewer's even extraction.1:15.6 · 32g / 500g
Credit and corrections
This recipe is Onyx Coffee Lab’s. We have written out the numbers and linked to the original.