9 Barista Espresso Machine

Sale price Price £360.00 Regular price Unit price  per 

Tax included. Shipping calculated at checkout.

At Knock, we're big fans of the team at 9Barista - a UK-based company producing an innovative, high quality piece of manual coffee equipment that is also compact and portable. Just like the Aergrind. They're also a really nice bunch!

9Barista was founded by espresso fanatic and jet engineer William Playford. Combining his passions for espresso and engineering, William started work on designing the first of
9Barista’s products, the 9Barista espresso machine, back in 2015. The 9Barista has the
unique ability to produce professional, barista-quality espresso on a stove top and is now being enjoyed by coffee aficionados all around the world.

How does it work?

Well, let’s rewind to the jet engineer bit. To produce genuine, delicious espresso you need three things; high pressures, perfectly controlled temperatures and precise engineering to bring it all together. The same three things that a jet engine requires. So, William used all his jet engineering expertise to develop a completely new and unique solution for creating high pressures and controlled temperatures in a deceptively simple home espresso machine. The result? Consistently delicious espresso from a machine with exceptional reliability and durability.

How does the 9Barista work?

9Barista produces professional quality espresso by using a new, patented technology that sets it apart from all other espresso machines. At its heart is a unique twin-boiler system. One boiler sets the brewing pressure, while the second regulates the brewing temperature. The high-pressure boiler is heated on a stove top until it reaches 179oC, increasing the pressure inside to 9 bar precisely. At 9 bar pressure the spring-loaded valve opens, allowing water to flow from the high-pressure boiler into the coil heat exchanger. As the high-pressure water from the first boiler passes through the coil, it is cooled from 179oC to 100oC, while remaining at 9 bar pressure. The water then passes through the fin heat exchanger where it is cooled further to 93oC. Now the water is at precisely the right pressure and temperature to pass through the ground coffee, producing a perfect crema-cloaked espresso in the cup at the top. Simple, but at the same time, deliciously clever.