Drawdown depends on grind, fines, filter, dose, geometry and agitation. Taste remains the deciding evidence.
What to evaluate
Keep the decision connected to the actual coffee, brewer and serving goal.
- Check filter seating
- Fines slow flow
- Swirling can migrate fines
- Large doses deepen the bed
A repeatable workflow
Use one baseline, then change only what the evidence supports.
- Repeat the same pour
- Adjust grind one step
- Keep dose and water
- Record time and taste
Common mistakes
These errors make comparisons unreliable or create avoidable problems.
- Pouring faster to force clogs
- Changing filters and grind
- Using another brewer target
- Rejecting good taste because of time
Time is diagnostic, not a score.