Support

Help & installation

Simple to install — and it changes the way you grind on your Mignon. Here’s everything you need to fit it and get dialed in.

Fit it in four steps

1

Remove the stock knob

Take off the factory adjustment knob on the right side of your Mignon. Most pull straight off.

2

Seat the Crown

Slide the Crown onto the shaft with its model-matched collar. It sits flush, no tools required.

3

Set your zero

A quick one-time calibration marks your grinder’s zero as the dial’s reference point. Do it once and every saved number stays true.

4

Dial in & save

Find a shot you love, hold to save it, and switch beans freely — the dial brings you right back.

Eureka Perfetto owners

Perfetto knob-removal guide

The Perfetto is fully compatible, but its factory knob requires an extra step to remove before installation. If you’re unsure how to take yours off, message us and we’ll walk you through it safely.

Ask about the Perfetto

Common questions

Which grinders does The Crown fit?+
Most Eureka Mignon and Eureka Oro Mignon grinders with the standard right-side adjustment knob — including the Specialita, Silenzio, Zero, Libra, Oro Single Dose and many more. See the Compatibility page for the full list.
What about the larger “King Size” knob?+
Eureka models with the King Size knob have a protrusion on the top cover plate that stops the dial sitting flush. It can still work by replacing the top cover plate — message us below and we’ll help you sort it.
I have a Perfetto — anything different?+
The Perfetto is fully compatible, but its stock knob needs one extra removal step before installation. See the Perfetto guide above, or message us if you’d like a hand.
Do I need any tools?+
No. On supported grinders the stock knob comes off and the Crown goes on by hand in a couple of minutes. A guided calibration sets your zero the first time.
Is there an app or anything to pair?+
No — the Crown is completely self-contained. Every setting and saved recipe lives on the dial itself: no app, no phone, no pairing, no account. Install it and it works.
When does it ship and what will it cost?+
We’re launching on Kickstarter. Join the launch list and you’ll get early-supporter pricing and a ship date before anyone else — with no charge today.

Still have a question?

Message us

Not sure if your exact model fits — especially a King Size knob? Tell us your machine and we’ll get back to you, usually within a day.

Prefer email? Write to info@crowncoffeegear.com