A post-mix beverage dispensing system comprising: a nozzle; a diluent conduit (130 in fluid communication with the nozzle; a concentrate conduit in fluid communication with the nozzle; a flow control valve in fluid communication with the concentrate conduit and a source conduit; and a concentrate source connected to the source conduit by a connector, the concentrate source including: a concentrate chamber containing a beverage concentrate, a pressurized outer container surrounding the concentrate chamber, wherein a pressure retained within the pressurized outer container is exerted on the concentrate chamber, and a valve assembly in fluid communication with an interior of the concentrate chamber, such that the connector opens the valve assembly, wherein the beverage concentrate and a diluent mix at the nozzle to dispense a beverage, wherein the connector comprises a valve activation device configured to engage the valve assembly to release beverage the liquid concentrate from within the concentrate chamber, and wherein the connector further comprises: a sealing collar to surround a portion of the pressurized outer container; and a shaft in fluid communication with the source conduit. a nozzle; a diluent conduit (130 in fluid communication with the nozzle; a concentrate conduit in fluid communication with the nozzle; a flow control valve in fluid communication with the concentrate conduit and a source conduit; and a concentrate source connected to the source conduit by a connector, the concentrate source including: a concentrate chamber containing a beverage concentrate, a pressurized outer container surrounding the concentrate chamber, wherein a pressure retained within the pressurized outer container is exerted on the concentrate chamber, and a valve assembly in fluid communication with an interior of the concentrate chamber, such that the connector opens the valve assembly, wherein the beverage concentrate and a diluent mix at the nozzle to dispense a beverage, wherein the connector comprises a valve activation device configured to engage the valve assembly to release beverage the liquid concentrate from within the concentrate chamber, and wherein the connector further comprises: a sealing collar to surround a portion of the pressurized outer container; and a shaft in fluid communication with the source conduit. a concentrate chamber containing a beverage concentrate, a pressurized outer container surrounding the concentrate chamber, wherein a pressure retained within the pressurized outer container is exerted on the concentrate chamber, and a valve assembly in fluid communication with an interior of the concentrate chamber, such that the connector opens the valve assembly, wherein the beverage concentrate and a diluent mix at the nozzle to dispense a beverage, wherein the connector comprises a valve activation device configured to engage the valve assembly to release beverage the liquid concentrate from within the concentrate chamber, and wherein the connector further comprises: a sealing collar to surround a portion of the pressurized outer container; and a shaft in fluid communication with the source conduit. a sealing collar to surround a portion of the pressurized outer container; and a shaft in fluid communication with the source conduit.