Receiving the LUCCA Atom Beta Test Grinder
- Unpack the grinder. Remove the protective film from the touchscreen if necessary.
- Unpack the hopper from its plastic bag and insert the hopper into the rubber gasket at the top of the grinder.
- Place the grinder on a counter near your espresso machine, plug it into a wall outlet, and turn on the power.
- Make note of the grind setting displayed along the top of the screen. (please email us a picture to firstname.lastname@example.org)
Getting started TestFlight for iOS from Apple
TestFlight makes it easy to test beta versions of our LUCCA Espresso app before it is released on the App Store.
- Follow the link in an email invitation. You will be prompted to install TestFlight, or it will open if you already have it.
- Open TestFlight app and be sure to allow notifications when prompted so you can be notified when new releases are available.
- Tap "Install" for the "LUCCA Espresso" app. Once downloaded open the app and continue with the instructions below.
Getting started with the LUCCA App
- Download the Lucca App (you should have received an invite)
- Sign up to create a User Profile.
- Under the “Account” menu, select your equipment settings, and, if you’d like, enter your name.
Connecting the Grinder to your local WiFi network
- In the LUCCA App, under the “More” menu, select “Connect Grinder to Wi-Fi.”
- Enter your WiFi network name, and press “Next.” Yes, we know this should auto-populate. We are working on it.
- Enter your WiFi network password, and press “Save.”
- After the App displays the “Success!” screen, turn the grinder off and then on again to connect it to the local WiFi network.
Creating a Grind Profile and uploading it to the Grinder
- In the LUCCA App, under the “Browse” menu, select the Verve Bronson profile.
- Once the coffee is selected, select from one of three shot types from the menu. Each shot type indicates a particular target ratio, expressed as [dry coffee weight]:[brewed espresso weight].
- After selecting a Shot Type, you will be taken to a screen where you can enter a name for your Grind Profile, the roast date of the coffee you’ll be using (you can change this at any time later), the coffee dose you’ll use (i.e. the dry coffee weight in the portafilter), and modify the grind time for your Grind Profile.
- At the bottom of the screen, you will see a preview of the grind setting, and the target shot weight for the parameters you have selected. Press “Save” to continue.
- Now, from the “Home” screen of the LUCCA App, you can view the grind profiles you have created, toggle each one to select it for upload, and tap “Save To Grinder” to upload up to 8 selected Grind Profiles to your Grinder.
- Note: Your grinder must be within Bluetooth range for the Grind Profiles to upload. Any deselected Grind Profiles in the LUCCA App will be removed from the list of Grind Profiles saved to the Grinder.
Selecting a Grind Profile and brewing a shot of espresso.
- Once you have uploaded one or more profiles to your Grinder, you will be able to view them by pressing the menu button in the bottom left corner of the Grinder’s touch screen.
- From the menu, you can select a Grind Profile, select Manual or Continuous Mode, scroll to see more profiles, or press [x] to return to the main screen.
- Tap a Grind Profile to select it. You will be taken back to the main screen. If the grinder is not already adjusted to the correct setting, a message will appear on the screen, instructing you to turn the grind adjustment knob to a particular grind setting.
- Once adjusted to the proper setting, the message will disappear, and you may begin grinding coffee.
- Pro-tip: Make sure your hopper contains the expected type of coffee (and enough of it), and make sure the sliding gate at the bottom of the hopper is fully open.
- Place your preheated, dry portafilter onto a gram scale, and press the “zero” or “tare” button so that the scale reads 0.0g.
- Press the portafilter into the button below the spout and above the portafilter rest fork to begin grinding coffee into the portafilter.
- Place the filled portafilter onto the scale, and determine if the dispensed weight is what the recipe calls for. (Note: less coffee may come out of a recently empty grinder, so wait a couple of shots before making any large adjustments to grind time.)
- If the weight is less than required by the Grind Profile, place the portafilter under the spout and tap the “pulse” button on the right side of the Grinder’s touch screen. (The duration of the pulse is configurable in the app under the “Account” tab.) Repeat until the weight of the ground coffee is correct for the recipe.
- If the weight is greater than required by the Grind Profile, remove some grounds using a utensil or your fingers until the weight is correct.
- Distribute the grounds using the supplied Saint Anthony Industries BT Wedge distribution tool.
- Tamp the grounds using the supplied Saint Anthony Industries New Levy tamper.
- Place an empty cup on a scale on your espresso machine’s drip tray.
- Before inserting portafilter, purge the grouphead for a couple of seconds to make sure everything is up to the proper temperature.
- Lock the portafilter into place and begin brewing.
- Stop the shot when the scale reads a gram or two less than the target, as a little more espresso will continue to dispense. Note the shot time and shot weight. If the shot fell within about 2 seconds of the time target, give it a taste! We will ask you to keep a record of this data for the entire test.
- If the shot time is not within about 2 seconds of the target for the Grind Profile, and/or you don’t like the way the shot tastes, you may want to make an adjustment. Adjust the grind setting finer (lower numbers) to extend the shot time. Adjust the grind setting coarser (higher numbers) to shorten the shot time.
- Pro-tip 1: A recently idle grinder may produce a first shot that flows differently than the rest. Sometimes all it takes is brewing another one with no adjustments.
- Pro-tip 2: If you must adjust, make it small--one setting at a time is usually best--and purge about 1 shot’s worth (18-20g) of coffee between adjustments to best evaluate the full effect of the grind change.