Eureka Atom W 65 Coffee Grinder

On the touch display you set the grams of the three doses with + and −. Choose the dose and rest the portafilter on the fork, which has the scale built in: grinding starts by itself after a few seconds and stops when it reaches the set grams. For the next dose, remove the portafilter, wait about two seconds and put it back. You can also grind continuously by holding the button, and switch from grinding by weight to grinding by time.

If the + and − turn dark and stop responding, you have locked the dose 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.

Both grind by weight, with the same Eureka technology and the same 0.2 g consistency, and both have 65 mm hardened steel flat burrs. What changes is the use they are designed for:

• Atom W 65: a grinder for commercial use. 1.2 kg hopper, 2.3-3.8 g/s, and it can be configured with different burrs and hoppers.
• Atom W 65 Casa: the home version. 300 g hopper, lower body (480 mm against 544), espresso-design burrs, 1.8-3 g/s and up to 1-1.5 kg of coffee a day. The scale comes factory-calibrated and there is a single configuration.

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.

Not routinely: Calibration is only needed if the scale loses precision. You do it with a sample weight: hold the calibration button for 3 seconds, rest the portafilter on the fork, press tare, put the sample weight in the portafilter and press calibrate. A green V means it worked, a red X means it did not.

If you knock the portafilter or the fork while it grinds, grinding pauses: press a dose button within 5 seconds to restart. If instead the scale sees no increase in grams while grinding, it stops by itself to keep the motor from overheating.

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.

Yes, it is designed for commercial use, such as restaurant kitchens, canteens and shops; it is not meant for continuous mass production. It grinds 2.3-3.8 grams per second and has a 1.2 kg hopper.

In the menu it keeps count of the kilos ground for each dose and can alert you when it is time to check the burrs, which is due every 500 kg. If you pull many shots back to back at peak times, the Atom W 75 grinds faster, 3.3-4.8 g/s.

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.