Drip and pour-over
Watch drawdown, filter clogging, water temperature, and whether the last half of the brew tastes harsher than the first.

Free PDF guide
This guide helps you diagnose bitter, harsh, or dry coffee and choose the next useful fix: grind, time, temperature, ratio, or beans.
Start with the cup you already brewed.
Change one variable at a time.
Keep the routine simple.
Tell bitter coffee apart from burnt, sour, weak, and flat cups.
Know when to grind coarser, shorten brew time, or lower temperature.
Spot ratio mistakes that make coffee taste bitter and thin.
Use a small test before blaming the beans.
Build a repeatable routine without turning coffee into a science project.
Decide when a different bean style is actually the right next move.
Bitter coffee is not one single problem. A dry, puckering cup usually points toward too much extraction. A smoky cup can come from dark roast, old oils, or coffee left on heat. A bitter but weak cup often means the recipe is both understrength and over-extracted, so brewing longer will make it worse.
The guide gives you a short taste map before it asks you to change anything. That keeps the next test small: grind a little coarser, shorten contact time, lower water temperature, clean the brewer, or adjust the coffee-to-water ratio. You should know what you are testing before the next brew starts.
Watch drawdown, filter clogging, water temperature, and whether the last half of the brew tastes harsher than the first.
Separate grit from bitterness, avoid over-steeping, and pour the finished coffee off the grounds instead of letting it keep extracting.
Use steady heat, avoid tamping, stop before the loud final sputter, and keep the grind coarser than espresso.
Check shot time, channeling, dose, and the bitter finish that appears when a shot runs too long.
Bitter coffee usually means the brew pulled too much from the grounds, or the roast naturally leans smoky and sharp. The guide helps you separate those problems before you buy another bag.
| If the cup tastes... | Try first |
|---|---|
| Dry and harsh | Slightly coarser grind or shorter contact time |
| Bitter but weak | Check ratio before adding more brew time |
| Smoky from the first sip | Look at roast style, old oils, or hot-plate damage |
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Try the grind-size helper when the taste clues point toward extraction, or use BrewMatch when the beans themselves do not match your taste.
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