Pour Over Troubleshooting: 8 Fixes for Common Problems

Under-extracted. Grind finer, use hotter water, or extend brew time by pouring more slowly. The cup should have body and sweetness, not just bright acid.

Bitter or drying

Over-extracted. Grind coarser, drop water temp by 3 degrees, or pour faster to shorten contact time. Bitterness at the finish means you pulled too much from the grounds.

Weak and watery

Too little coffee, too coarse a grind, or channeling. Check your ratio first, then your grind. A watery cup that also tastes bitter means channeling — your water is escaping without extracting evenly.

Going deeper

There's the version of this you can learn in five minutes, and there's the version that makes every cup better for the next ten years. This is the second one.

Water quality and temperature

Coffee is 98 percent water, so bad water guarantees a bad cup. Aim for 150 ppm total dissolved solids with a balanced calcium-to-magnesium ratio. Third Wave Water and Lotus Water Drops both make this trivial. Brew temperature belongs between 195 and 205 degrees Fahrenheit — hotter for dense light roasts, cooler for darker ones. A thermometer or a temperature-controlled kettle removes the guesswork entirely.

Reading the bed after brewing

The spent coffee bed tells you exactly what happened. A flat, even bed with a small dome in the center means uniform extraction. A crater or channel means water bypassed some of the grounds — usually caused by an aggressive pour or an uneven initial distribution. High walls of coffee stuck to the paper mean you didn't rinse the sides down enough. Take ten seconds to look before you rinse the dripper.

Dialing in grind size

Grind is the single biggest lever you have. Too coarse and the brew runs fast, tastes thin, and finishes sour. Too fine and it stalls, over-extracts, and turns bitter. Start medium-fine — roughly the texture of table salt — and adjust in small steps. If your total brew time lands under 2:45, tighten the grind two clicks. Over 3:45, open it up two clicks. Never change grind and ratio in the same session; you'll never know which variable moved the cup.

Pouring technique that actually matters

Pour in slow concentric circles from the center outward, then back. Keep the kettle spout two to three inches above the bed so the water enters gently instead of drilling a channel. Avoid pouring directly on the paper — grounds stuck to the wall don't extract. Pulse pouring (multiple small pours) gives you more control than a single continuous pour, especially on lighter roasts that need agitation to open up.

Common mistakes to avoid

The fastest way to improve is to stop doing the wrong thing. In order of frequency: using stale coffee, skipping the scale, running the water too cool, and changing multiple variables at once. Fix those four and you're brewing better than 90 percent of home setups.

Final thoughts

Coffee at this level rewards attention, not spending. A modest setup used consistently beats an expensive setup used carelessly, every time. Give any technique two weeks of daily practice before deciding whether it works for you — palate takes longer to train than muscle memory.