Coffee journal
A useful coffee tasting note
Write what you notice
Begin with ordinary words: light, heavy, bright, soft or dry. You do not need an elaborate vocabulary. Describe the coffee in a way that will make sense to you when you read the note again.
Record the routine
Keep the coffee, water amount and brewing method together in the same entry. If you change something next time, change one part of the routine so the comparison remains useful.
Compare after cooling
Try the cup again after a few minutes. Add a second observation below the first. The contrast between two short notes is often more informative than one long description.