Unlike fully self-contained pour-over models like the Chemex Classic Series, the Hario V60 functions by sitting on top of your collecting vessel (fancy phrase for a mug).
The Hario V60 comes in three different sizes — 10 oz, 20 oz, and 30 oz — and comes in either ceramic, glass, plastic or metal.
Note: Not all size options offer each material, so check out the Amazon listing to see what’s available.
I also want to make a couple notes about the design differences between specific materials within the Hario V60 line:
All sizes are compatible with mugs up to 4 inches in diameter, which is pretty darn big. The 20 oz model (size 02) is the standard size used in coffee shops. I wouldn’t get the 10 oz (size 01) unless you prefer thinner coffee or are OK with 8-10 oz cups.
See that ridged, vortex shape in the cross-section of the Hario V60? Those ridges stop the paper filter from sticking to the side of the cone, which prevents a vacuum from forming and ensures a constant, smooth flow.
This means you, the user, truly controls the brew speed as you manually pour hot water over the grounds.