How many grams of coffee per cup of water?

Brewing coffee is as much a science as it is an art, and the foundation of that science is the ratio of coffee to water. For years, this was discussed in vague terms like 'scoops' or 'heaping tablespoons,' but these methods are notoriously inaccurate because coffee density varies wildly based on roast level and origin. To truly master your brew, moving to a gram-based coffee measurement is the single most effective change you can make.

Starting with a 1:16 ratio—meaning one gram of coffee for every 16 grams of water—is the industry standard for a balanced brew. It hits the sweet spot for most drinkers: neither too watery nor too intense. If you prefer a stronger, more concentrated cup, you might shorten that ratio to 1:15. If you prefer a lighter, more tea-like body, you might lean toward 1:17 or 1:18. Once you establish this baseline, you have a reference point to adjust from.

Why does this matter? Extraction is a game of balance. If you use too little coffee, the water has too much capacity to dissolve compounds, often leading to a bitter, hollow taste. If you use too much, the water becomes saturated quickly, potentially leaving the coffee under-extracted and sour. By weighing your coffee and your water, you remove the guesswork.

In practice, keep a simple digital scale on your counter. Even if you don't use it every single morning, using it while you are dialing in a new bag of beans will save you from wasting coffee and help you find the flavor you love much faster. Once you understand the ratio that works for your preferred brewing method, you can replicate that perfect cup every time, regardless of the coffee you are using.