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DIY Espresso Machine

April 5, 2005

Engadget has a how-to article on making a portable “espresso machine”.

The unit is made up of pretty much equal parts PVC, caulk gun, and hacker ingenuity, and much like a Philips Senseo, it may make coffee from pressurized hot water, calling it espresso seems to be a bit of a stretch.

Likewise, it seems to lack the counter-panache of a Francis! Francis! X3 (or a Senseo, even). On the other hand, it may be the best coffee you ever got from shopping on the plumbing aisle at Home Depot, even if it does lack provisions for steaming the milk…

With this machine, you’ll heat your water seperately and then just pour it in. I highly suggest you pressure test the unit for leaks with cold water before trying a hot water run. You are the pump, so you will control the pressure in the system. It’s all dependent on how hard you tamp the grounds and what rate you force the plunger through. You probably won’t be producing 12 bar and I double.. no.. triple suggest you pressure test the system if you are even going to attempt that kind of pressure.

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