Bottom line: Pour-over coffee fails in seven predictable ways. Each is fixable in one or two brews if you know what to look for.
1. Grind size is too fine
Result: bitter, harsh, slow drip that pools in the filter. Coffee tastes "burnt" even though it isn't.
Fix: coarsen the grind. Aim for the texture of coarse table salt for V60 / Kalita Wave.
2. Water temperature is too low
Below 195°F (90°C) and you're under-extracting. Cup tastes sour, weak, and watery — like coffee that didn't finish.
Fix: bring water to a near-boil, let it sit 30 seconds. Aim for 200-205°F (93-96°C).
3. Coffee-to-water ratio is off
Most pour-over recipes call for 1:15 to 1:17. Anything outside that range tends to taste either thin or muddy.
Fix: weigh your coffee and water. Eyeballing fails. A cheap kitchen scale is the highest-leverage purchase in coffee.
4. You skip the bloom
Skipping the 30-second bloom (where you wet the grounds and let them de-gas) leaves CO₂ trapped in the bed, blocking even extraction. Cup goes flat.
Fix: pour 2x your coffee weight in water, let it sit 30-45 seconds, then continue. Non-negotiable.
5. Pouring too aggressively
Hard pours channel water through the grounds unevenly. Some particles over-extract, others stay dry. Cup tastes inconsistent — strong on one sip, watery on the next.
Fix: use a gooseneck kettle. Pour in a slow, steady spiral. Keep the water bed level.
6. Filter wasn't rinsed
Paper filters straight from the box add a "papery" taste to the cup. You'll notice it most in lighter roasts.
Fix: rinse the filter with hot water before adding coffee. 10 seconds, takes nothing, fixes a real flavor flaw.
7. Stale coffee
Coffee past 4 weeks from roast date tastes flat regardless of brewing skill. Pre-ground coffee from the supermarket is usually 6+ months gone.
Fix: buy whole-bean coffee with a roast date on the bag. Use within 2-4 weeks of roasting.
The fix that helps most
Get a scale. Weigh everything. Half of these mistakes disappear automatically when you stop guessing and start measuring. $20 fix, lasts forever.
