Brew guide · Pour-over · Updated 2026-09-13
The Perfect Chemex Ratio (2026 Guide)
Batch pour-over for two or three: dose, grind, filter prep and timing for the signature ultra-clean Chemex cup.
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Step by step
- 1
Rinse the bonded filter(0:00)
Seat a Chemex bonded filter and rinse with a full kettle of hot water — these filters are twice as thick as V60 papers and taste papery unrinsed. Discard the rinse water and warm the carafe.
- 2
Add coffee and bloom(0:00 - 0:45)
Add 42 g of medium-coarse coffee (sea-salt texture, coarser than V60). Pour 90 g of water to saturate, then wait 45 seconds — the thick filter slows everything down, so give the bloom time.
- 3
Slow main pour(0:45 - 2:30)
Pour to 700 g total in slow spirals, keeping the slurry below the top third of the filter. Pour in two or three stages rather than one flood — the deep bed extracts best with pauses.
- 4
Drawdown and serve(2:30 - 4:30)
Let it drain fully. A sweet, tea-like 700 ml batch finishes around 4:00-4:30. Bitter? Grind coarser. Sour or thin? Grind finer or extend the bloom.
Barista tips
- Chemex grind is coarser than V60 — V60-fine grounds stall the thick filter past 6 minutes.
- Never skip the rinse: bonded filters add a cardboard note if unrinsed.
- 42 g / 700 ml serves two big mugs or three small cups — scale at 1:16.
- Our Chemex vs Hario V60 comparison covers when to pick which brewer.
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Frequently asked questions
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