Eureka Atom Specialty 75 Black Coffee Grinder

Doses are time-based. Choose the single or double dose with its button and set the time with + and −; then rest the portafilter on the fork until it presses the button under the spout, and grinding starts. The Manual Mode button switches to continuous grinding: it grinds as long as the portafilter presses the button, or you start and stop with the same key. Set the times by weighing the ground coffee.

If + and − no longer change the time and you see a padlock on the display, you have locked the settings by pressing them together. Press them together again to unlock.

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, towards espresso, and anticlockwise for a coarser one, towards filter. The adjustment is stepless: go gradually and grind a little coffee every two notches at most. After each adjustment, grind 2 or 3 doses before judging the result.

When you go finer, do it with the motor running. Turning more than 3 notches with the motor stopped can jam or damage the machine. If that happens, write to us before sending it in for service.

The tall hopper holds 1.4 kg of coffee beans; the short one holds less but takes up less height. The Blow Up versions have a bellows in the lid: at the end of grinding, press the lid firmly a couple of times and the puff of air pushes out the ground coffee left in the spout, so less stays behind between one dose and the next. Smoked means dark plastic instead of clear.

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

• Hardened Steel: hardened steel, the standard burrs. Check them and, if needed, replace them every 350 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: a treatment that makes flat burrs last longer than steel. There is no figure in kilos for these.

Our advice: at home 350 kg is many years of coffee and Hardened Steel is enough; the treatments make sense in a café, where the kilos add up quickly.

Yes, it is designed for professional use by trained staff. Doses are time-based, the counters keep track of single and double doses, and the burrs should be checked every 350 kg of ground coffee.

Between 65 and 75 mm the difference matters most at peak times: the Atom Specialty 65 grinds 2-3.5 g/s, the Atom Specialty 75 4-5.5 g/s, with a more powerful motor and a 1.4 kg hopper instead of 1.2.

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.