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Chemex 8 Cup

Large Batch

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Chemex 8 Cup Chemex by Chemex

Batch brew method for the 8-cup Chemex. Very coarse grind prevents slow drawdown with larger volumes.

1:15.1 Ratio
5:30 Total
53g Dose
96°C Temp
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Parameters

53 g
Coffee
800 g
Water
1:15.1
Ratio
96 °C
Temp
8 extra coarse
Grind
5:30
Total
~800 ml
Yield
Grind · 8/10 · coarse
FINE COARSE

Method

5:30 · total
  1. Bloom 1 / 7
    0:00

    Pour 150g of water in circular motion to bloom.

    +150g→ 150g Spiral 15s
  2. Pour 2 / 7
    0:30

    Pour 130g of water in circles.

    +130g→ 280g Spiral 15s
  3. Pour 3 / 7
    0:45

    Pour 130g more.

    +130g→ 410g Spiral 15s
  4. Pour 4 / 7
    1:00

    Pour 130g more.

    +130g→ 540g Spiral 15s
  5. Pour 5 / 7
    1:15

    Pour 130g more.

    +130g→ 670g Spiral 15s
  6. Pour 6 / 7
    1:30

    Final pour: add 130g. Stop pouring.

    +130g→ 800g Spiral 15s
  7. Done 7 / 7
    5:30

    Full drawdown complete. Remove filter. Swirl carafe to mix.

Notes

The very coarse grind is critical for large batches. Finer grinds cause extremely slow drawdown and over-extraction. Finish all pouring by 1:30. Expect 5-6 minute total brew time.

Original source

Recipe by Chemex, published at chemexcoffeemaker.com.

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Bloom

0:00

150g

+280g add

15s
Bloom · 1/7 0:00