• You can buy the size 03 version. That’s what I already have actually. With 03, you can brew 30gr of coffee with 450gr of water in one go.

      With 02, you can also brew 2 cups, but using release-steep-release method. Open the valve, add 30gr coffee, then 225gr hot water. After water has passed through, close the valve, then add another 225gr water. Steep for 1-2 minutes, then open the valve again.

      Aside from that, according to Lance Hedrick, kono and Stagg also fits.