US 5,895,672 · Granted 1999-04-20
The Patent That Turned Espresso Machines Into Tea Brewers
Someone figured out how to use an espresso machine—the device that makes coffee by forcing hot water through grounds—to brew tea instead, and patented the exact way to do it. The result is a tea that tastes consistent every time, because the machine controls temperature and pressure precisely.
The plain-English version
What it protects
The claim covers a method and apparatus for extracting tea using espresso-style pressure brewing technology. What's protected here is the specific process of preparing tea extract through a coffee brewing device, as well as the novel tea compositions formulated to work with this pressurized extraction system. Anyone making or selling a commercial device that applies espresso brewing techniques to tea extraction would need permission from this patent.
Why it matters
This patent bridges two beverage categories by repurposing existing espresso machine technology for tea. It protects an unconventional use case—taking industrial coffee equipment and adapting it to produce a consistent, high-quality tea extract. The commercial value lies in enabling cafes and manufacturers to offer premium tea products using already-familiar and widely-available brewing infrastructure, without requiring entirely new equipment.
Real-world use
A specialty cafe could use a modified espresso machine to brew cups of concentrated tea extract, similar to how they pull espresso shots, then dilute it with hot water for customers.
Original USPTO abstract
A novel system for producing a high quality tea extract using espresso technology is provided as well as novel tea compositions for use in such system and a process for preparing a tea extract of consistently high quality using a coffee brewing device, and particularly, an espresso machine.
Patent details
- Publication number
- US 5,895,672
- Filing date
- 1998-01-13
- Grant date
- 1999-04-20
- Assignee
- Cooper; Barry Patrick Wesley
- Inventor(s)
- COOPER; BARRY PATRICK WESLEY
- CPC class
- B65D85/8046
Want to file your own patent?
If you're tinkering with a new kitchen appliance idea, check IsItPatented's free scanner to see what brewing and extraction patents already exist in your space.
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