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A brewing control method for use with beverage brewing system (10) uses a controller (52) responsive to a comparison of preselected values of total brew water and total diluent water stored in a program memory (62) and to actual quantities measured by one of two flow meter (36, 36') to control opera

A brewing control method for use with beverage brewing system (10) uses a controller (52) responsive to a comparison of preselected values of total brew water and total diluent water stored in a program memory (62) and to actual quantities measured by one of two flow meter (36, 36') to control operation of a brew valve (46) passing water to a hot water tank (14) and a diluent valve (50) for passing water directly to a mixing chamber (28). the controller also responds to a level sensor (20) to control the brew valve (46) to keep the hot water tank filled with water. The preselected amounts of diluent and extract are changed for different brewing conditions to obtain different total quantities of beverage or different ratios of hot brew water passed through the brew basket (24) to cold diluent water passed directly to the mixing chamber, or serving urn (28).

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We claim: 1. In a beverage brewing system water tank connectable with a source of water and having a brew basket for holding liquid extract ingredient and a mixing chamber for receipt of both the liquid extract ingredient and a quantity of diluent water for mixing together into a beverage, the impr

We claim: 1. In a beverage brewing system water tank connectable with a source of water and having a brew basket for holding liquid extract ingredient and a mixing chamber for receipt of both the liquid extract ingredient and a quantity of diluent water for mixing together into a beverage, the improvement being a beverage brewing control method comprising the steps of: directly measuring an actual quantity of water flowing from the source of water with a flow meter that measures the actual quantity of water independently of flow rate: and delivering, through a delivery system, water from the source to liquid extract ingredient held within the brew basket to make a liquid beverage extract, passing the liquid beverage extract to the mixing chamber; and selectively controlling, with a controller responsive to the actual quantity of water directly measured by the flow meter, the delivery system to deliver only a preselected amount of the actual quantity of water to at least one of the brew basket and to the mixing chamber. 2. The beverage brewing control method of claim 1 in which the step of delivering includes controlling a controlled mixing valve of the delivery system for passing water from the source and the flow meter to the mixing chamber, and storing a quantity of water passed through the controlled mixing valve as measured by the flow meter. 3. The beverage brewing control method of claim 2 in which the step of delivering includes the steps of controlling a controlled brew valve of the delivery system for passing water from the source and the flow meter to the brew basket, and storing the quantity of water passed through the controlled brew valve as measured by the flow meter. 4. The beverage brewing control method of claim 1 including the steps of controlling a controlled brew value of the delivery system for passing water from the source and the flow meter to the brew basket, and storing the quantity of water passed through the controlled brew valve as measured by the flow meter. 5. The beverage brewing control method of claim 4 including the steps of passing water from the brew water tank through a siphon connection to the brew basket, and controlling the controlled brew valve to pass water to the brew water tank to force an equal quantity of water in the brew water tank to pass to the brew basket through a siphon connection between the brew water tank and the brew basket. 6. The beverage brewing control method of claim 4 including sensing with a level sensor in the brew water tank when the brew water tank is at a preselected siphon level above which the water is siphoned off through a siphon connection to the brew basket, and heating with a heating element the brew water in the brew water tank before it is siphoned off to the brew basket. 7. The beverage brewing control method of claim 4 including the steps of passing water through the controlled brew valve when connected to a side of the brew water tank adjacent a bottom of the brew water tank, and passing water out of the brew water tank and to the brew basket through a siphon connection when connected to the brew water tank adjacent a top of the brew water tank. 8. The beverage brewing control method of claim 1 including the steps of respectively passing water from the source of water and flow meter to the brew basket and the mixing chamber through two controlled valves of the delivery system, and controlling with said controller the controlled valves to prevent both from being open at the same time. 9. The beverage brewing control method of claim 8 in which the step of controlling includes storing an output indication of quantity from the flow meter as brew water when the one of the valves connected to the brew water tank is opened and the other one of the valves is closed, and storing an output indication of quantity from the flow meter as mixing water when the other one of the valves connected to the mixing chamber is open and the one valve connected to the brew water tank is closed. 10. The beverage brewing control method of claim 1 in which the step of controlling includes the steps of storing a preselected total quantity of brew water that is to be passed through the brew basket, comparing a measured quantity of brew water being measured by the flow meter with the preselected total quantity of brew water, and stopping the delivery system from passing more brew water to the brew water tank when the preselected total quantity is equal to the measured quantity of brew water that has passed to the brew water tank. 11. The beverage brewing control method of claim 10 including the steps of selectively changing the preselected total quantity of brew water to a new preselected total quantity of brew water that is to be passed through the brew basket, and storing the new preselected total quantity of brew water. 12. The beverage brewing control method of claim 10 in which the step of controlling includes the steps of storing a preselected total quantity of beverage to be made by mixing water passed directly into the mixing chamber with the beverage extract, and comparing the actual quantity of water measured by the flow meter with the preselected total quantity of beverage to be made, and responding to the comparing means to stop the delivery system from passing more water to the mixing chamber when the actual measured quantity of water that has passed through the flow meter is equal to the preselected total quantity of beverage to be made. 13. The beverage brewing method of claim 12 including the steps of selectively changing the preselected total quantity of beverage to be made to a new preselected quantity of beverage to be made; and storing the new preselected total quantity of beverage to be made. 14. The beverage brewing control method claim 1 in which the step of controlling includes the steps of storing a preselected total quantity of beverage to be made by mixing water passed directly into the mixing chamber with the beverage extract, and comparing with a comparing means the actual quantity of water measured by the flow meter with the preselected total quantity of beverage to be made, and responding to the comparing means to stop the delivery system from passing more water to the mixing chamber when the actual measured quantity of water that has passed through the flow meter is equal to the preselected total quantity of beverage to be made. 15. The beverage brewing control method of claim 1 in which the step of controlling includes the steps of storing a preselected total quantity of mixing water that is to be passed directly to the brew basket, comparing the actual amount of mixing water being measured by the flow meter with the preselected total quantity of mixing water, and stopping the delivery system from passing more mixing water to the mixing chamber when actual quantity of mixing water that has passed to the mixing chamber equals the preselected total quantity of mixing water. 16. The beverage brewing control method of claim 15 including selectively changing the preselected total quantity of mixing water to a new preselected total quantity of mixing water, and storing the new preselected total quantity of mixing water. 17. The beverage brewer control method of claim 1 including the steps of sensing with a level sensor in the brew water tank when the water has reached a preselected siphon level above which water will be siphoned from the brew water tank, controlling with said controller the distribution system to pass water into the brew water tank until the level reaches the preselected siphon level, and passing hot water out through a siphon connection from the brew water tank to the brew basket when a substantially equal amount of water from the water source is passed through the flow meter and into the brew water tank during a time when the level in the brew water tank is generally at the preselected siphon level. 18. The beverage brewing control method of claim 1 including the steps of heating with an electrical heater the water in the brew water tank to a preselected, relatively hot, brewing temperature, and in which the water from the water source is relatively cold as compared to the preselected relatively hot brewing temperature. 19. The beverage brewing control method of claim 1 in which the step of controlling includes the step of commencing delivery of the preselected amount in response to a manual actuation switch and stopping delivery in response to the flow meter. 20. The beverage brewing control method of claim 1 including the steps of passing water through a controlled brew valve of the delivery system from the source and the flow meter to the brew basket, passing water through another controlled mixing valve from the source and the flow meter to the mixing chamber, and with the controller responding to the flow meter and to the controlled mixing valve being open for temporarily storing the quantity of water passed through the controlled mixing valve, and responding to the brew valve being open and to the flow meter for temporarily storing the actual quantity of water being passed through the controlled brew valve. 21. The beverage brewing control method of claim 1 in which the step of controlling includes responding with the controller to the flow meter to control the delivery system to deliver only a preselected amount of the measured quantity to both the brew basket and to the mixing chamber. 22. The beverage brewing control method of claim 21 in which the step of controlling includes responding with the controller to the flow meter to control the delivery system to deliver only a preselected total measured quantity of water accumulatively delivered to the brew basket and the mixing chamber. 23. The beverage brewing control method of claim 1 including the step of heating the water in the brew water tank to a preselected temperature relatively higher than that of the water source. 24. The beverage brewing control method of claim 1 in which the brew water tank has an inlet and an outlet, and including a controlled valve interposed between the flow meter and the inlet of the brew water tank. 25. The beverage brewing control method of claim 24 including the steps of heating the water to a preselected temperature at which significant liming may occur, and passing with a valve-less siphon connection relatively hot brew water from the outlet of the brew water tank to the brew basket. 26. The beverage brewing control method of claim 25 in which the inlet to the brew water tank is located at a level beneath that of the outlet from the brew water tank. 27. The beverage brewing control method of claim 25 in which the outlet is located adjacent a top of the brew water tank. 28. The beverage brewing control method of claim 1 in which the step of selectively controlling includes the step of selectively changing the preselected amount of the measured quantity to be delivered to the at least one of the brew basket and to the mixing chamber. 29. The beverage brewing control method of claim 1 in which the step of selectively controlling includes the step of selectively changing preselected amounts of the measured quantity to be delivered to both the brew basket and to the mixing chamber. 30. The beverage brewing control method of claim 1 including a second flow meter and a second controlled valve and in which the step of selectively controlling includes the steps of controlling passing of water through the flow meter and a first controlled valve to the brew basket in response to the amount of water measured by the flow meter, and controlling passing of water through the second flow meter and the second controlled valve to the mixing chamber in response to the amount of water measured by the second flow meter. 31. In a hot beverage brewer with a water distribution system including a water tank connectable to a pressurized external source of water, the improvement being a beverage brewing control method comprising the steps of: measuring a quantity of water being passed to the water tank of the brewer from an external source of water with a measuring means that is independent of the flow rate of the water being passed from the pressurized external source of water to the water tank; and controlling the water distribution system of the brewer in response to the measuring means. 32. The beverage brewing control method of claim 31 in which the measuring means is a paddle-wheel type flow meter with one of an electrical output and a magnetic output for representing revolutions per minute of the paddle-wheel. 33. In a hot beverage brewer with a water distribution system including a water tank connectable to a pressurized external source of water, the improvement being a beverage brewing control method comprising the steps of: measuring a quantity of water being passed to the water tank of the brewer from an external source of water with a measuring means that is independent of the flow rate of the water being passed from the pressurized external source of water to the water tank; and controlling the water distribution system of the brewer in response to the measuring means, including the step of responding with a computer to the quantity being measured for controlling the operation of one controlled valve for passing water directly from the measuring means to a mixing chamber, and another controlled valve for passing water from the measuring means to the mixing chamber via a brew basket containing brew ingredient. 34. The beverage brewing control method of claim 31 in which the step of controlling includes the steps storing in a memory of a computer actual amounts of measurements of flow for at least one given location, prestoring a preselected total quantity of flow for the at least one given location in a memory of the computer, and comparing the actual measurements of flow being stored with at least one prestored, preselected total quantity of water for the at least one location to control a controlled valve to pass only the prestored, preselected total quantity of water. 35. The beverage brewing control method of claim 31 in which the brewer includes a brew basket and a mixing chamber, and the step of controlling includes the steps of selectively varying proportional amounts of water delivered to the brew basket relative to a measured amount of water delivered to the mixing chamber. 36. The beverage brewing control method of claim 35 in which the step of controlling includes the step of selectively changing total accumulative amounts of water delivered to both the brew basket and the mixing chamber without changing the proportional amounts. 37. The beverage brewing control method of claim 31 in which the brewer includes a brew basket and a mixing chamber, and in which the step of controlling includes the step of controlling total accumulative amounts delivered to both the brew basket and the mixing chamber in response.