Eureka Atom Excellence 75 Coffee Grinder

Doses are time-based. On the touch display choose the single or double dose and set the time with + and − in steps of 5 hundredths of a second; holding them down changes the time faster. Rest the portafilter on the fork and press the dose button again to start. There is also a short extra dose, from 0.2 to 1 second, which you can replace with a third dose from the menu, and continuous grinding, which lasts as long as you hold the button.

If the + and − turn dark and stop responding, you have locked the settings by pressing them together for a moment: the lock symbol appears on the display. Press them together again to unlock; if you have enabled the password, it will ask for it.

Every Atom has flat burrs, stepless micrometric adjustment and a motor running at 1,300 to 1,400 rpm. What changes most is how you set the dose:

• Atom W (W 65, W 75 and W 65 Casa): grinds by weight. The scale sits in the fork: you set the grams on the touch display and grinding stops by itself at the dose, consistent to 0.2 g. The W 65 Casa is the home version, with a 300 g hopper.
• Atom Excellence: touch display and time-based doses, single and double plus an extra dose or a third dose, and continuous grinding.
• Atom Specialty: display with physical buttons and time-based doses, single and double plus manual mode; it starts when the portafilter presses the button under the spout.
• Atom Pro: 75 mm burrs, no programmed doses, started and stopped with the START/STOP switch. It is designed mainly for filter coffee, with magnetic forks for the V60 and for the filter tray.
• 65 or 75 mm: within the same series the 75 has larger burrs and a more powerful motor, so it grinds more grams per second. For example 2.3-3.8 g/s for the Atom W 65 and 3.3-4.8 g/s for the Atom W 75.

Turn the knob clockwise for a finer grind and anticlockwise for a coarser one. The adjustment is stepless: go gradually and grind a little coffee every two notches at most.

When you go finer, do it with the motor running. One full turn of the knob with the motor stopped can jam the machine. If that happens, write to us before sending it in for service.

They are all flat burrs of the same size for your Atom: what changes is the material or the treatment, and so how long they stay sharp.

• Hardened Steel: hardened steel, the standard burrs. Check them and, if needed, replace them every 500 kg of ground coffee.
• Diamond: these are Diamond Inside burrs, with a patented cryogenic treatment at -193 °C. They are the longest lasting: with 65 mm burrs the grind stays consistent for about 1,300 kg of coffee.
• Red Speed and Titanium: a treatment and a material that make flat burrs last longer than steel. There is no figure in kilos for these.

Our advice: at home 500 kg is many years of coffee and Hardened Steel is enough; the treatments make sense in a café, where the kilos add up quickly.

The one that matches the mains where you will use it. Eureka makes the Atom in a 220-240 V version, the voltage in most of the world, Europe included, and in a 110-120 V version for low-voltage mains, such as North America.

If you are not sure about your mains, write to us before ordering.