Brewing Methods
French Press Ratio: How Much Coffee to Use
Scaling 1:15 to any size press
By Coffee In Cup Editorial TeamPublished 2 February 2026Updated 13 February 20264 min read
Demonstration content. Copy, data and sources are placeholders to be verified before publishing.
A French press is sized by water volume, so scaling the dose is simple arithmetic.
The numbers
At 1:15, divide the weight of your water in ounces by fifteen.
- 12 fl oz press — 0.8 oz coffee
- 27 fl oz press — 1.9 oz coffee
- 34 fl oz press — 2.4 oz coffee
Adjusting
Move to 1:14 for a heavier cup or 1:16 if it tastes muddy.
Frequently Asked Questions
Should I fill the press to the top?+
Leave room for the plunger — about ¾ inch below the rim.
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