How much coffee should I use per cup?

The question of how much coffee to use is the most common hurdle for home brewers. While many people rely on 'scoops,' this is notoriously inaccurate because different beans have different densities and sizes. To achieve consistent, cafe-quality results, you must move toward weighing your coffee and water using a digital scale.

The 1:15 to 1:18 ratio is the industry standard for a reason. It provides a balanced extraction where the coffee is neither too weak (watery) nor too strong (overpowering or bitter). If you prefer a bolder, more intense cup, aim for the lower end of the spectrum (1:15). If you prefer a lighter, more tea-like cup that highlights delicate floral or fruity notes, aim for the higher end (1:18).

It is important to remember that this ratio is a starting point, not a law. Different brewing methods require different approaches. For example, a French press, which is an immersion method, often benefits from a slightly lower ratio (closer to 1:15) to account for the way the grounds interact with the water over a longer period. Conversely, a pour-over might perform better at 1:16 or 1:17 to ensure clarity of flavor.

In practice, start by weighing your water and your coffee every time you brew. If your coffee tastes sour or thin, you are likely under-extracting, which means you should either use more coffee or grind finer. If it tastes bitter or harsh, you are likely over-extracting, and you should use slightly less coffee or grind coarser. By keeping your ratio consistent, you turn brewing from a guessing game into a repeatable science, allowing you to tweak one variable at a time until you find your perfect cup.