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My Japanese iced coffee recipe

Posted on:July 11, 2026 at 12:00 PM

This is not really an article. I just want a clean place to keep the coffee recipes I make all the time, so I don’t have to work out the numbers again.

This one is my favorite Japanese iced coffee: brewed hot with the Kalita Wave, directly over ice. It is quick, bright, and cold as soon as the brew is done.

The recipe

Amount
Coffee32.5 g
Total water500 g
Ice200 g (40%)
Hot water300 g (60%)
Ratio65 g per liter (about 1:15.4)
GrindFiner than my usual Kalita grind
Bloom45 seconds
Total brew time2–3 minutes

How I make it

  1. Put 200 g of ice in the server and place the Kalita Wave on top.
  2. Grind 32.5 g of coffee, a little finer than I would for a normal hot Kalita.
  3. Bloom with part of the hot water for 45 seconds.
  4. Keep pouring as usual until I reach 300 g of hot water. I aim to finish the whole brew somewhere between 2 and 3 minutes.
  5. Remove the brewer and stir the coffee and ice with a spoon.

That’s it. 32.5 g coffee, 200 g ice, 300 g hot water. :)

The useful part to remember is the split: 40% ice and 60% hot water. For a different batch size, I keep the coffee at 65 g per liter and use the same 40/60 split.