Chemex Coffee Ratio 1:13

The 1:13 ratio produces a strong cup. Here's exactly how much coffee you need for common volumes.

1:13 Ratio Means:

1g coffee for every 13g (ml) of water

Chemex Measurements with 1:13 Ratio

WaterCoffee
8 oz (237ml)18.2g
12 oz (355ml)27.3g
16 oz (473ml)36.4g
24 oz (710ml)54.6g

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