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Adjusting the 0-point grinder – a small universal tip for all common grinders

Adjusting the 0-point grinder – a small universal tip for all common grinders

Reading time: 4 minutes

Correct Setup of the Zero Point of your Coffee Grinder

A precisely adjusted grinder is the foundation for perfect coffee enjoyment. Especially with external grinders – those not built into the coffee machine – it is important to correctly define the so-called zero point. This point indicates when the grinding burrs just barely touch each other. If the zero point of your grinder is misaligned or incorrectly set, a setting like “2” may grind much too fine or too coarse, which can lead to issues especially when preparing espresso. For espresso in particular, precise grind size adjustment is crucial for perfect coffee extraction – even small deviations can strongly affect the taste of the result.

The following guide offers you a practical orientation on how to find this point yourself on most flat or conical burr grinders.

Before you begin, always disconnect the grinder from the power source – safety first. If it is not a new device, we recommend thoroughly cleaning the burrs. Special cleaning powders or grinder cleaners that can be used without disassembly are suitable for this.

Universal Guide: Setting the Zero Point on a Coffee Grinder

  1. Disconnect power: Completely disconnect the grinder from the power source before starting the adjustment.
  2. Cleaning (for used devices): Thoroughly clean the burrs with a special grinder cleaner or cleaning powder to remove old coffee residues and oils.
  3. Close the burrs: Slowly turn the grind setting towards “fine” until the burrs can no longer move. They are now tightly touching.
  4. Turn back until no friction is audible: Slightly open the grinder and turn the burrs against each other. As soon as no grinding or friction noises are audible, the zero point has been reached.
  5. Mark or set the zero point:
    • If your grinder has an adjustable scale, set the “0” to this point.
    • If no scale is available, a small mark (e.g., with a marker or sticker) will suffice.
  6. Test desired grind setting: Set the grind size according to your brewing method (e.g., espresso or filter coffee) and grind a test portion. Adjust slightly if necessary until the ideal grind size is achieved.

This method is suitable for many common models from manufacturers such as Baratza, Eureka, Mazzer, Fiorenzato, ECM, and others. The exact procedure may vary slightly depending on the model – if unsure, check the manual or feel free to contact our service team.