Join Victoria as she demonstrates how to set up and dial-in the Eureka Olympus KR E Espresso Grinder. Dialing in your grinder isn't always easy. We discuss the steps to fine-tune your grinder for the best possible extraction. Please note that we also offer a grinder dial-in service if you prefer to have someone else do the hard work for you! 

Step one: Out of the box and onto the counter

  • Remove the grinder from its box and place it on a solid level surface.
  • Inspect the grinder for any damage. If you notice any, contact us immediately.
  • Insert the hopper and tighten the hopper screw
  • Plug the grinder in and turn it on.

Step two: Feeling the coffee

  • Put some beans in the hopper and grind them into your hand.
  • Feel the grounds. For espresso, they should feel similar to table salt.
  • Not as fine as powdered sugar, and not as coarse as sand.
  • If too fine, adjust coarser. Too coarse, adjust finer.

Step three: Dialing the dose

  • Once the grind is in the ballpark, it’s time to start pulling shots.
  • First, grab a scale and tare the weight of the portafilter.
  • Fill your hopper and use your portafilter to press and hold the grind button to grind manually. Release the button when the basket looks full.
  • Now weigh the portafilter. Add or remove grounds as necessary to get to 20g if you’re using a triple basket, or 18g if you’re using a double.

Step four: Adjustments - shot time

  • Grip the tamper handle as though you were grasping a doorknob. Tamp straight down and simply lean your weight into it comfortably.
  • The amount of pressure is not nearly as important as your consistency and ability to keep the tamp perfectly level so water doesn’t find weak spots.
  • Insert your portafilter and start the shot.
  • We’re going to be watching for the time of the first drops of espresso to fall between 6 and 10 seconds.
  • If they fall outside the window, you’ll have to adjust the grind setting: under six seconds will be thin and sour, so you will need to adjust finer; over 10 seconds will be bitter, so you will need to adjust coarser.
  • Make small adjustments. This will be easier than making big changes and overcorrecting.
  • As the shot progresses, we’ll observe the total shot time: Our target output is 1.5oz (or 30g) liquid espresso in 25 - 30 seconds.
  • If it falls under 25 seconds, adjust your grind finer. If it falls over 30 seconds, adjust coarser.
  • We recommend making half-digit adjustments at most to avoid over-correcting
  • If you find that your ideal setting would be between two numbered settings, we suggest adjusting your dose.
  • If your shot is pulling too fast, add a gram or so to slow it down. If it’s pulling too slow, try removing a gram to speed things up.

Step five: Time Dosing

  • Now that we have our grind dialed, we can set up the grind timer for consistent and repeatable dosing.
  • We find that it takes about 3 seconds to grind a 20g dose.
  • Set your desired dose timer to 3 seconds using the plus and minus buttons.
  • Select the 3-second dose and press the grind button with your portafilter. It will automatically stop after 3 seconds.
  • Weigh the portafilter again. If the dose is too small, increase timed setting. If it is too much, decrease it.

 Now it's time to learn how to pull the perfect shot of espresso

 

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