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US 11,788,037 B2Granted
Process for treating wort
OwnerRobert Taylor, II, Josh Gwirtz +4inventors
InventorsRobert Taylor, II, Josh Gwirtz, Peter Reilly, Tanya Hulse, Gil Alberding, Martin Brooks
Life of this patent
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Abstract
The present invention provides a process for treating a wort composition in a kettle, said method providing a significant energy saving compared to existing wort treatment processes. In particular, the process includes a hot-hold step for the wort, followed by gas sparging at elevated temperatures.
Claims20
A process for treating a wort composition in a kettle, the process comprising the steps of:
- (a) providing:
- a kettle provided with an inlet suitable for feeding a wort composition into the kettle and with an outlet suitable for flowing the wort composition out of the kettle;
- heating means;
- and
- a gas sparging system suitable for sparging a gas into the wort composition;
- (b) adding the wort composition from a mash separating step into the kettle through the inlet;
- (c) heating the wort composition to a target temperature between 80° C. and 96° C.;
- (d) maintaining an average target temperature of the wort composition between 80° C. and 96° C. for a first period of 12-45 minutes, wherein during the first period the wort composition does not reach its boiling point, and wherein during the first period a gas sparging of less than 10 g/Hl/Hr takes place;
- (e) raising the target temperature of the wort composition to a second target temperature of between 97° C. and 99° C.;
- (f) sparging a gas through the wort composition at an average rate of 80-350 g/Hl/Hr while maintaining a second average target temperature of between 97° C. and 99° C. for a second period of between 15 minutes and 75 minutes, wherein during the second period the wort composition does not reach its boiling point;
- and
- (g) transferring the wort composition as a treated wort composition to a trub separation step through the outlet of the kettle.
9 more elements
A method for treating a wort composition in a kettle, the method comprising:
- providing:
- a kettle comprising an inlet that feeds a wort composition into the kettle and an outlet that flows the wort composition out of the kettle;
- a heater;
- and
- a gas sparging system that sparges a gas into the wort composition;
- adding the wort composition from a mash separation into the kettle through the inlet;
- heating, by the heater, the wort composition to a first target temperature between 80° C. and 96° C.;
- maintaining a first average target temperature of the wort composition between 80° C. and 96° C. for a first period between 12 minutes and 45 minutes, wherein during the first period the wort composition does not reach its boiling point, and wherein during the first period no gas sparging of the wort composition takes place;
- heating, by the heater, the wort composition to a second target temperature of between 97° C. and 99° C.;
- sparging, by the gas sparging system, a gas through the wort composition at an average rate of 80-350 g/Hl/Hr while maintaining a second average target temperature of the wort composition between 97° C. and 99° C. for a second period of between 15 minutes and 75 minutes;
- and wherein during the second period the wort composition does not reach its boiling point;
- and
- transferring the wort composition as a treated wort composition out of the kettle through the outlet.
10 more elements
A method, comprising:
- adding a wort composition into a kettle through an inlet of the kettle, the wort composition comprising an initial total weight;
- heating, by a heater of the kettle, the wort composition to a first target temperature between 80° C. and 96° C.;
- maintaining a first average target temperature of the wort composition between 80° C. and 96° C. for a first period between 12 minutes and 45 minutes, wherein during the first period the wort composition does not reach its boiling point, and wherein during the first period no gas sparging of the wort composition takes place;
- heating, by the heater of the kettle, the wort composition to a second target temperature of between 97° C. and 99° C.;
- sparging a gas through the wort composition at an average rate of 80-350 g/Hl/Hr while maintaining a second average target temperature of the wort composition between 97° C. and 99° C. for a second period of between 15 minutes and 75 minutes;
- and wherein during the second period the wort composition does not reach its boiling point;
- and
- transferring the wort composition as a treated wort composition out of the kettle through an outlet of the kettle, wherein the treated wort composition comprises 0.8% to 1.2% evaporation of water based on the initial total weight of the wort composition.
5 more elements
Dependencies are inferred from the claim text.