What is the 80/20 rule for coffee?
The 80/20 rule for coffee states that 20% of the brewing variables contribute to 80% of the final flavour quality. Focus on water temperature and grind size because these primary factors dictate the success of your extraction process. The standard “golden ratio” for coffee is 1:16 – that’s one part coffee to 16 parts water by weight. For example, if you’re using 20 grams of coffee, you’ll need 320 grams (or milliliters) of water. This ratio is a great starting point for most brewing methods and balances strength and flavor.