Change one thing. Taste the difference.

Know the method

The National Coffee Association describes pour-over as manually pouring water through coffee grounds in a filter. Unlike an automatic drip machine, the brewer controls the pouring. A scale helps make the chosen coffee and water amounts explicit.

Reference: National Coffee Association — Pour-over coffee ↗.

Create your own baseline

Choose one coffee, one brewer and one starting recipe appropriate to that equipment. Write down the dry coffee mass, water mass and the time you observe. The recipe examples on this site are adjustable learning inputs, not a universal brewing standard.

Do the ratio arithmetic

For a coffee-to-water mass ratio of 1:16, 20 g of coffee corresponds to 320 g of water. That is simply multiplication. The water added is not a promise of the final beverage mass; the calculation does not model what remains in the grounds or brewer.

Ask a narrower tasting question

On the next attempt, keep the recorded setup and change just one selected variable. Write what you notice in your own words. “I preferred this one” is a useful personal result; it is not an objective quality grade or a claim that everyone will agree.