Home espresso enthusiast and shade tree engineer
Andy Schecter had something to show at the SCAA conference in Charlotte. It was an air compressor powered piston pump outfitted with the ability to modify and sculpt pressure profiles. Attached to the
Synesso Cyncra in
Gimme! Coffee's booth, the device drew mixed reactions. Spectators seemed either completely indifferent to the impractical innovation or enthusiastic about the possibilities of pressure sculpting for optimizing coffees.
This device appears to be very significant for two reasons:
1.No more pulsating pump pressure. The piston pump pushes water straight through with nary a flutter.
Other online coffee blogger types have claimed that constant pump pressure increases
clarity and
mouthfeel. After tasting a really fantastic shot off a lever machine, its hard to disagree.
2.Complete control over pressure profiles. We have experienced a gentle brew pressure decline from lever group machines, but what about a gentle upward ramp in pressure? What happens if pressure completely falls off halfway through, only to ramp back up full blast? We can only guess, and the truth is that a lot of time could be devoted to experimentation with this variable.
So what I imagine is this: Each group on an espresso machine very much like the
Synesso (but with different pump activation controls) is fitted with one of these pumps and an easily accessible user interface screen much like that on the
Clover 1s. Using the interface the operator can set, on the fly, the group to optimize for different coffees. Somebody wants a shot of the
Guat Huehue Finca Huixoc? No problem. Turn the dial to set for "guatemala", and the preset pressure profile and temperature for that coffee is dialed in. Wait for the light to turn green (to indicate the group is at correct temp) and you are ready to rock. With small dedicated boilers for every group, it wouldn't take long for the temperature to increase, nor would it require much surfing to cool the group down.
If you need to adjust the settings for different coffees, a simple laptop terminal connected with USB or firewire allows you to dock into the machine's central brain, tweaking extraction parameters from there. Of course, the operator would still be able to make simple temperature and pressure adjustments without presets using the interface on the machine.
Or if you are a wholesale roaster, and your espresso changes and extraction parameters need to be adjusted, you can email your clients the update, which they can easily load into their machine with a laptop.
Crazy control over the extraction environment. Is this third wave?