How much coffee grounds per cup?

Determining how much coffee to use is the most fundamental step in achieving a consistent brew. While many people rely on scoops, the most accurate way to measure coffee is by weight using a digital scale. The 'Golden Ratio' of 1:16 is widely accepted by the specialty coffee community as the baseline for a balanced cup, providing enough strength to highlight the coffee's origin characteristics without becoming overwhelming.

To calculate this for your specific brewer, multiply your desired water weight by 0.0625. For example, if you are brewing 300 grams of water (roughly 10 ounces), you would use approximately 18 to 19 grams of coffee. If you prefer a bolder, more intense cup, you might move toward a 1:15 ratio; for a lighter, more tea-like experience, a 1:17 or 1:18 ratio is often preferred. The key is to treat the ratio as a starting point rather than a rigid rule.

In practice, the ratio you choose should also account for your brewing method. Immersion methods like the French press often benefit from a slightly higher coffee-to-water ratio because the extraction is less efficient than percolation methods like a V60 or drip machine. If you find your coffee is consistently weak, do not simply increase the brew time, as this will likely lead to bitterness; instead, increase your dose of coffee grounds.

Remember that coffee density varies by roast level. Darker roasts are less dense and take up more volume than lighter roasts. If you are measuring by volume (scoops), you may inadvertently use less coffee with a dark roast than a light one, leading to a weak cup. Using a scale eliminates this variable entirely, ensuring that your morning ritual is as delicious on Tuesday as it was on Monday. Once you find a ratio you enjoy, keep it constant and only adjust your grind size to fine-tune the flavor.