A recipe is a starting point.

Build a small, repeatable process—and use it to learn what you enjoy.

First, make a baseline

Choose one coffee and one brewing method. Use a scale to record the coffee and brewing water. Follow your brewer’s directions for grind, preparation, and operation.

For a simple ratio example, 20 g of coffee with 320 g of brewing water is 1:16. It is a starting experiment, not a required standard or a prediction of beverage volume: some water remains in the grounds.

Then, change one thing

Keep your coffee and method consistent. Try a different coffee-to-water ratio, or make one small grind-setting change while keeping the ratio the same. Write down the change and your impression.

Compare the cups at similar drinking temperatures. Use your own words: full, light, sweet, sharp, dry, or anything more specific that helps you remember the experience.

Know what your measurement means

Brewing water is the water used to make the coffee. Finished beverage weight is what reaches your cup. Those quantities are not interchangeable, and espresso brew ratios use a different convention from this site’s filter/immersion calculator.

Keep a short brew log

Record the date, coffee, dose, brewing water, equipment setting, process, and taste. Finish with one question for the next cup.