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Long Steep

by Jonathan Gagné AeroPress

Astrophysicist and coffee researcher's recipe: a 10-minute steep for maximum extraction without astringency. Backed by studies from coffee science and geophysics.

  • Floral
  • Citric
  • Medium-bodied
  • Light roast
  • Medium roast
  • Long
  • Beginner
Total
10:00
Ratio
1:14.4
Coffee
18 g
Temp
100 °C

The Long Steep recipe by Jonathan Gagné for the AeroPress uses 18 g of coffee and 260 g of water (1:14.4 ratio), at 100°C, with a target brew time of 10:00.

Parameters

18 g
Coffee
260 g
Water
1:14.4
Ratio
100 °C
Temp
3 fine
Grind
10:00
Total
1
Servings
Grind · 3/10 · fine
FINE COARSE

Method

10:00 · total
  1. 0:00
    Pour

    Pour 260g of boiling water until AeroPress is filled.

    +260g 15s Slow
  2. 0:15
    Stir

    Stir back-and-forth from complete bottom to top with spoon. Avoid circular stirs. Place plunger a few mm deep. Remove from scale, swirl to level bed.

  3. 5:00
    Swirl

    Give the AeroPress another thorough swirl.

  4. 9:00
    Press

    Begin pressing gently. Takes about 1 minute.

  5. 10:00
    Done

    Brew complete (~10 min total).

Notes

Use 100°C water. Stir back-and-forth from bottom to top — never circular. The long steep achieves ~23.5% extraction yield. A Fellow Prismo helps prevent drip-through. Place dry filter, dry coffee, shake flat. Some water will drip through — don't worry.

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Original source

Recipe by Jonathan Gagné, published at aeroprecipe.com.

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V60
0:00
Pour 2/5
0:30

100g

+50g Add water

3
Wait 0:45
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