Physical Properties (updated for Version 2 Units)

Main Device Material (all metal that touches water or coffee): 304 Stainless Steel
Maximum Pressure Rating: 160 psi (11 bar)
Dimensions (without basket): 16.5″ x 3.5″ x 3.5″ (41.9cm x 8.89cm x 8.89cm)
Weight (with gauge): 1.425 kg – 3.14 lb (Main Unit: 781g – Piston: 525g – Ring: 119g)

Force Required to Operate the Forge

Pressure inside (PSI / Bar) Downward Force Required on Handle (lbs / kg)
60 psi / 4.1 bar 21 lb / 9.7 kg
100 psi / 6.9 bar 35 lb / 15.95 kg
120 psi / 8.2 bar (ideal) 41 lb / 18.6 kg
140 psi / 9.6 bar 48 lb / 21.68 kg
160 psi / 11 bar 53 lb / 24.3 kg

Leave a Reply