SingleSingle Brewer with Portable Server Brews 5.1 to 11.4 gallons (19.3 to 43.2 litres) of perfect coffee per hour. Brews .5 1 or 1.5 gallon (1.9 3.8 and 5.7 litre) batches. Adjustable bypass ensures perfect coffee regardless of batch size. Hot water faucet does not affect brew level. Electronic timer ensures fast set up and accurate brew levels. Electronic grinder interface instructs grinder on exact amount of coffee for selected brew batch size. 1.5 GPR portable server (included) has a patented Safety-Fresh brew-through lid with vapor seal and spill protection. SplashGard funnel deflects hot liquids away from the hand. International electrical configurations available.