Lesson 1 · 4 min
Name What Tastes Wrong
Identify whether the cup is mainly bitter, burnt, sour, weak, strong, muddy, or sour-and-bitter.
Bad coffee has different clues
Most people say "bitter" when they mean "I do not like this cup." That is normal, but it can send you toward the wrong fix.
Before you touch the grinder, kettle, scoop, or bag, name the main kind of bad.
The quick taste map
- Bitter is dry, rough, woody, and lingering.
- Burnt is smoky, ashy, charred, or scorched.
- Sour is sharp, thin, lemony, or pointed.
- Weak means the cup lacks body or satisfying flavor.
- Strong means concentrated. Strong coffee can still taste good.
- Muddy feels heavy, gritty, silty, or hard to finish.
- Sour and bitter together often means the brew was uneven.
Why the label matters
A bitter-dry cup often points toward gentler extraction. A burnt cup may point toward roast level, hot holding, overheated brewing, or old residue. A sour-and-bitter cup often asks for more even brewing before a big grind move.
Your job is not to find a perfect tasting word. Your job is to pick the clue that gives you the safest first test.
Practice check
A cup starts thin, then turns rough and bitter at the finish. What is the clearest label?
Pick the clue that best describes the pattern.
Remember this
Takeaway: Name the taste before changing the recipe.
Misconception: Every unpleasant cup is bitter.
Tip: Notice where the bad flavor appears: first sip, finish, after cooling, or after sitting.
Short version: Bitter is usually dry, rough, and lingering.

