# Fix My Coffee (/en/docs/fix)



When a cup tastes wrong, the most common mistake is changing several things at once: new beans, a finer grind, hotter water. The next cup is better — and you have no idea which change did it.

This page does not hand you an answer. It walks you through a diagnosis: name what is wrong, see which variables might cause it, then **change exactly one variable** and brew a comparison cup.
Log it in the [Brew Log](/docs/brew-log), and decide on the next suspect after that cup.

## Step by step [#step-by-step]

<FixMyCoffee />

## Every symptom at a glance [#every-symptom-at-a-glance]

The same diagnosis table as plain text: every symptom, every suspect and its one experiment, ready to expand.

<FixReference />