Spiral Pour

Chemex 3 Cup Chemex by Blue Bottle Coffee

Blue Bottle Coffee's Chemex guide is scaled to the 3-cup brewer around a steady outward spiral and a finer grind suited to a small bed. The controlled flow is meant to build even extraction, clean structure, and balanced sweetness.

1:16 Ratio

3:30 Total

25g Dose

96°C Temp

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Parameters

25 g
Coffee: 400 g
Water: 1:16
Ratio: 96 °C
Temp: 6 medium
Grind: 3:30
Total: ~400 ml
Yield

Grind · 6/10 · medium

FINE COARSE

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Method

3:30 · total

Before you brew

1 Fold the filter, place its thick side over the pouring channel, rinse it thoroughly and discard the rinse water.

Bloom 1 / 4
0:00

45s

Pour 50g in a spiral from the centre out, spiral back to the centre, then let it bloom. Keep the stream over the coffee bed and off the filter. Let it bloom.

+50g→ 50g Spiral outward 10g/s 5s 96°C
Pour 2 / 4
0:45

45s

Pour 150g to 200g from the centre out and back to the centre, keeping the stream over the coffee bed.

+150g→ 200g Spiral outward 10g/s 15s
Pour 3 / 4
1:30

2m

Pour the final 200g to 400g from the centre out and back to the centre, keeping the stream over the coffee bed.

+200g→ 400g Spiral outward 10g/s 20s
Done 4 / 4
3:30

Finish when the coffee stops dripping.

Notes

Hold a consistent 10g/s stream, beginning at the center and spiraling outward without contacting the filter wall. Adjust 96°C by roast development, hotter for light coffee and cooler for dark, then use grind changes to correct drawdown.

Original source

Recipe by Blue Bottle Coffee, published at bluebottlecoffee.com.

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Blue Bottle Coffee

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In the cup