CoffeeBox groups pour-over drippers into conical, flat-bottom and wedge-shaped designs. The V60 and Kalita Wave are familiar examples of the first two. Geometry changes the shape and depth of the coffee bed; outlets, ribs and the fitted paper also influence water movement. Comparing only the silhouette leaves out important parts of the brewer.
Research published in the Journal of Food Science found perceptible differences between semi-conical and flat-bottom filter baskets under its test conditions. That supports taking geometry seriously, not a universal rule that cones are always bright and flat beds always sweet. Dose, grind, paper and water delivery still affect the result.
Use the correct filter and a suitable batch size for each dripper. Record a complete recipe when comparing two designs, including pours and drawdown. A faster finish is not automatically a cleaner or better cup, and a slower one is not automatically more full-bodied. Establish which setup gives repeatable results for your coffee and preferences.
The conversation
A good question can make a better brew.