Flat-bottom vs cone dripper: Orea, Kalita Wave and V60
Flat-bottom or cone: the real question
Once you brew filter coffee at home, the question shows up sooner or later: a cone dripper like the V60, or a flat-bottom one like the Orea O1 or Kalita Wave? Both use paper, both need a good grind and hot water, but the shape of the dripper changes how water moves through the coffee bed, and that changes what lands in your cup. This note explains the difference; step-by-step recipes live in How to brew.
How a cone dripper works (V60)
- Shape: a 60° cone with one large hole and spiral ribs on the walls.
- What controls flow: mostly you. Because the hole is wide, speed depends on your pour and grind more than on the filter.
- What to expect: bright, defined cups when the pour is steady; dump the water or grind too fine and extraction can run away or turn uneven.
- Who it suits: people who like to tweak variables and own a gooseneck kettle. Our 1:18 V60 recipe is a good starting point, and the Hario V60 dripper is in the shop.
How a flat-bottom dripper works (Orea, Kalita Wave)
- Shape: a flat base that keeps the coffee bed at a more even depth from edge to center.
- Kalita Wave: three small holes and a wave-shaped filter; the holes slow drainage a little, so it forgives an imperfect pour. We carry Kalita Wave filters.
- Orea O1: a compact single-cup dripper, one piece with no moving parts; its open bottom favors central flow. It is our house pour-over: Orea O1 recipe 1:18 (20 g / 360 g), with a 60 g bloom and three even pours. Find the Orea O1 here.
- What to expect: balanced, repeatable cups with a more even drawdown.
What about Origami?
The Origami Dripper M is a hybrid: Mino porcelain with twenty ribs that let air move between dripper and filter, and it takes both cone filters (V60-02) and flat-bottom filters (Kalita Wave #185). With one dripper you can compare both geometries by changing only the paper.
What the research says
The UC Davis Coffee Center, working with the SCA, compared flat-bottom and semi-conical baskets in drip brewers while holding everything else constant (coffee, water, temperature and flow rate). Tasters could tell the two geometries apart, and the semi-conical basket produced significantly higher strength (%TDS). With a light roast, the flat basket showed more dried fruit, sweetness and florals, while the cone showed more citrus, berry and sourness. Read the summary in the SCA's magazine, Flat vs. Cone, and the full study in the Journal of Food Science (Frost, Ristenpart and Guinard, 2019).
One caveat: the study used automatic brewers, not hand pour-over, and consumer preferences split into groups, so no single shape won for everyone. Treat it as a clue, not a rule. The UC Davis Coffee Center keeps publishing research on extraction.
How to choose
- You want clarity and like playing with the pour: cone (V60).
- You want the same cup every day with less technique: flat-bottom (Orea O1 or Kalita Wave).
- You want to try both without buying two drippers: Origami with both filter types.
- You brew for several people: a size-02 dripper or the Origami M (2 to 4 cups).
Adjustments that apply to both
- Grind: on flat-bottom, start at medium (600-800 µm on our Orea); on a cone, go a bit finer. If the cup is bitter or dry, grind coarser; if it is sour and thin, grind finer. More in grind science.
- Water: in Toluca water boils near 91 °C, so use it right off the boil. See perfect water temperature for brewing and the mineral ranges in the SCA Coffee Standards.
- Ratio: 1:18 (20 g / 360 g) is our starting point on both drippers, so you can compare with the same coffee.
To place pour-over next to Chemex, AeroPress and espresso, see our brewing methods comparison or the art of pour over coffee.
Try it at TOLO
Whole beans and filter gear live in the TOLO shop. In Toluca, visit TOLO Pino Suárez at Blvd. José María Pino Suárez 800, Col. Cuauhtémoc, 50130. Phone: +52 56 2915 1741. It is our only open café; Cristóbal Colón is coming soon and not open yet.
