Perfect Espresso Pulls at Home

Here’s a little video to encourage you to keep working to get your components prepped for the perfect shot.  You do the work, and your shots will be perfect:

  • coffee roasted into 2nd crack, and fresh
  • a bit of monkey-work with your grinder to hit the sweet spot – be prepared to waste some coffee, dial it in.  in my case, I do a click to courser when there’s a low front / rain, and back to finer when there’s high pressure / dry weather, and it’s pretty predictable.
  • a sense of how much your particular machine should be dosed – for the coffee I’m using right now, and at the grind I’m using, my gaggia classic needs almost exactly 25grams, but that’s going to vary.
  • excellent distribution, take more time, don’t be in a hurry!!!  I always use the Weiss Distribution Technic.  No, my barista down the street doesn’t do it, but I find that I need to, and I’m okay with that.
  • tamp to 30 lb.
  • 9 bar / 202 F or so
  • Get your portafilter cut so you can see whether you’re doing a good job on distribution
  • Your shot should look something like this:

This is sumatra, roasted to a rolling 2nd crack, ground on a Rancilio Rocky that is zeroed out pretty accurately, and this is about 12 on the dial, on a rainy day.

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Coffee Nirvana

Just a short post to say that I’ve stumbled into a set of coffee tools that work so freaking well, I just can’t seem to miss, and I can’t quit talking about it.  Every cup is really amazing, I don’t think I have had more than a couple of fails since I installed the PID and bought the Rocky last month.  This is not your typical home coffee.  This is the real deal.

Maybe I need to incorporate an aeropress for day to day coffee, to spread the espresso out, so I don’t get burned out on the good stuff.  I’m really spoiled right now.  Especially with the home roasted coffee.

If you’re looking for a great combination for espresso, you should seriously consider the Rancilio Rocky grinder (or mazzer mini if money is no object), and the Gaggia Classic (or Espresso, or the Baby,[update: oops, make sure the model you're considering has an adjustable OPV, not sure the Baby does ] they’re all basically the same guts).

You’ll need to modify the Gaggia’s water pressure – they come from the factory with somewhere between 11 bar and 14 bar to accommodate the espresso pods (bleh).  Look for one of several ways you can measure and adjust the pressure.  I have an article about it here.  And you’ll need to install the PID kit from Auber Instruments.

Actually, I’m just wanting to show off that image above, because it was an AWESOME cup of coffee I made tonight. Jealous?  I think so.

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9-Bars

I watched a fellow on youtube last night, shakeyjava, who created a pressure gauge for the Gaggia Classic. I picked up the parts and made the exact same device today. I was tired of not knowing, and wasting a lot of coffee trying to get good shots. Here’s the deal:

The craziest part of this device is that this hose may be rated at 300 psi at 70 degrees F, but let me tell you, it balloons up at 212 degrees! DON’T do that. Instead, if you make one of these, test as SOON as you turn the machine on, while the water is still room temp. That’s a LOT safer.

Here is before and after video of my pressure:

Adjusting is easy:

  1. find the clear tube that terminates in about the center of the machine, and presses onto a brass barb connector.
  2. gently pull the tube off the connector
  3. use a 17mm socket or open-ended wrench to remove the brass connector
  4. Under that is a 5 or 6mm hex key that you turn counter-clockwise to decrease pressure.

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