N2O or CO2: Whats the difference and where can I buy them?
The mypressi TWIST uses 8gm N2O (nitrous oxide) cartridges to provide the pressure for an extraction. Each cartridge will make approximately 4 double shots or 8 single shots. While 8gm CO2 (carbon dioxide) cartridges will fit in the TWIST, they may leak quite quickly and even immediately. There is also a significant variation in size between different brands of CO2 cartridges so we don’t support their use. CO2 cartridges also have a varying thickness welded metal plate on the front of the cartridge that must be pierced for the gas to escape. N2O cartridges have a much thinner stretched sheet of metal plugging the end of the cartridge that is more easily pierced. It is possible that using a CO2 cartridge with a very thick plate could damage the piercer on the TWIST. Neither gas will change the taste of your espresso. In all cases we recommend using the mypressi brand of cartridges available from our store for best results. You can also use the BestWhip brand as they are identical in eve
