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Coffee Ratio Calculator

Perfect coffee-to-water ratio for any brew method

Coffee Ratio Calculator

A coffee ratio calculator determines the optimal amount of ground coffee relative to water for different brewing methods. The Specialty Coffee Association recommends a "golden ratio" of 1:16 to 1:18 (coffee:water by weight) as a starting point.

Fun Fact

The Specialty Coffee Association's "Coffee Brewing Control Chart" was developed in 1957 by MIT chemist Ernest Lockhart — one of the first scientific approaches to coffee quality.

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