A system and method for dispensing fluids is introduced. A preferred embodiment comprises a sealed tank, a bag containing fluid inside the sealed tank, an outlet for dispensing the liquid in the bag, and a pressure generating device to create pressure in the sealed tank.
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1. A method for dispensing a beverage, the method comprising: dispensing relative proportions of water, cream, and concentrated skim milk for making a first dispensed beverage, wherein the dispensing comprises dispensing a first amount of water at a first flow rate,dispensing a second amount of crea
1. A method for dispensing a beverage, the method comprising: dispensing relative proportions of water, cream, and concentrated skim milk for making a first dispensed beverage, wherein the dispensing comprises dispensing a first amount of water at a first flow rate,dispensing a second amount of cream at a second flow rate, anddispensing a third amount of concentrated skim milk at a third flow rate;combining the first amount of water, the second amount of cream, and the third amount of concentrated skim milk to make the first dispensed beverage;wherein relative proportions of the first, second and third flow rates are substantially equal to the relative proportions of the water, the cream, and the concentrated skim milk for making the first dispensed beverage;wherein the cream and the concentrated skim milk are dispensed from separate pressurized containers, wherein each pressurized container comprises a pressurized chamber, wherein an air pump provides pressure to the pressurized chamber,a flexible liner, wherein the flexible liner comprises flexible walls which allow pressure from the pressurized chamber to be transferred to liquid stored within the flexible liner, andan outlet through which the liquid can flow;wherein the second and third flow rates are controlled by adjusting the pressure to the pressurized containers;wherein adjusting the pressure comprises operating the air pump until a target pressure is reached; andwherein adjusting the pressure further comprises: measuring a temperature inside one pressurized chamber,measuring a first pressure inside the one pressurized chamber,introducing an amount of air inside the one pressurized chamber by running the air pump for a predetermined period of time after the measuring the first pressure,measuring a second pressure inside the one pressurized chamber after the introducing the amount of air, andadjusting the pressure inside the one pressurized chamber to dispense the liquid at a desired flow rate after the measuring the second pressure. 2. The method of claim 1, further comprising determining the relative proportions of the water, the cream, and the concentrated skim milk for making the first dispensed beverage. 3. The method of claim 1, wherein the dispensing the first amount of water, the dispensing the second amount of cream, and the dispensing the third amount of concentrated skim milk are performed simultaneously. 4. The method of claim 1, wherein the first dispensed beverage comprises an individual serving. 5. The method of claim 1, further comprising: dispensing relative proportions of the water, the cream, and the concentrated skim milk for making a second dispensed beverage, wherein the dispensing comprises dispensing a fourth amount of water,dispensing a fifth amount of cream, anddispensing a sixth amount of concentrated skim milk; andcombining the fourth amount of water, the fifth amount of cream, and the sixth amount of concentrated skim milk to make the second dispensed beverage. 6. The method of claim 5, further comprising determining the relative proportions of the water, the cream, and the concentrated skim milk for making the second dispensed beverage. 7. The method of claim 5, wherein the relative proportions of the water, the cream, and the concentrated skim milk for making the first dispensed beverage are different from the relative proportions of the water, the cream, and the concentrated skim milk for making the second dispensed beverage. 8. The method of claim 1, wherein the determining is performed by a microcontroller. 9. The method of claim 1, wherein the water comprises water from an external water line. 10. The method of claim 9, wherein the water from the external water line is refrigerated. 11. The method of claim 1, wherein the cream and the concentrated skim milk are dispensed from separate pressurized containers. 12. The method of claim 11, wherein each pressurized container comprises: a pressurized chamber, wherein an air pump provides pressure to the pressurized chamber;a flexible liner, wherein the flexible liner comprises flexible walls which allow pressure from the pressurized chamber to be transferred to liquid stored within the flexible liner; andan outlet through which the liquid can flow. 13. The method of claim 12, wherein the flexible liner is disposed within a box disposed within the pressurized chamber, the box comprising vent holes allowing pressurized air to pass through the box and apply pressure on the flexible liner. 14. The method of claim 13, wherein the box and the flexible liner comprise a bag-in-box package. 15. The method of claim 1, wherein the dispensing the first amount of water, the dispensing the second amount of cream, and the dispensing the third amount of concentrated skim milk are not performed simultaneously. 16. The method of claim 1, wherein the combining is performed in a nozzle. 17. The method of claim 1, wherein the combining is performed in a mixer. 18. The method of claim 1, wherein the flow rates are monitored by flow meters. 19. The method of claim 1, wherein the first dispensed beverage is non-fat milk. 20. The method of claim 1, wherein the first dispensed beverage is low-fat milk. 21. The method of claim 1, wherein the first dispensed beverage is reduced-fat milk. 22. The method of claim 1, wherein the first dispensed beverage is whole milk. 23. The method of claim 1, wherein the first dispensed beverage is half & half.
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