Twin (Airpots and ThermoFresh Servers) Brews up to 18.9 gallons (71.5 litres) of perfect coffee per hour Large 5.6-gallon (21.2 litre) tank provides back-to-back brewing capacity at 208-240V applications Each side has 3 brew buttons allowing for 3 separate brewing profiles. Two programmable batch switches allow full and half batch brewing. Brews into 2.5 to 3.8 litre airpots and 3.8 and 5.7 litre baseless ThermoFresh servers for easy transport of coffee to other locations BrewWISE intelligence with pre-infusion and Pulse-Brew for maximum flavor extraction. DBC grinder communicates with brewer through Smart Funnel. Energy-saver mode reduces tank temperature during idle periods Compatible with BUNNlink Airpots and baseless ThermoFresh servers sold separately;