Zerno Z1 Bellows

If you want to just clear the little bit of retained grounds or chaff in your Zerno Z1, this bellows can help you out.

Our 3D printed Zerno Z1 Bellows is a flexible piece that fits in between your Zerno Z1 stock hopper and stock lid and transforms it into a blower. If you don't have the lid, then we've got that covered as well.

[Become a Beta Tester]

This bellows is currently in beta. I've combined experience from making multiple other bellows to design this one. If you purchase a beta version, I'll support you along the way to ensure that the bellows fits and works.

[Design Features]

Simplicity and maximum effectiveness are my design goals, and both are carefully infused in my bellows' design.

• The bellows complements the grinder's original design rather than replacing it and upsetting its visual balance
• Super easy installation takes less than a minute
• No tools necessary for installation
• No warranty-voiding modifications needed
• Zero contact between bellows and beans each time you dose

[Variations]

Closed Top:

This design allows you to pump air through the grinder without the lid, if yours didn't come with one. You can easily remove the bellows each time you're dosing and replace it when you're done dosing.

Open Top:

This design allows you to install the bellows once and keep it on, only lifting the stock lid each time you dose.

58.5mm vs 56.0mm:

Zerno updated their stock hopper design sometime during 2024. I'm still working on confirming the exact time, but it seems to be for batches that started preorders sometime around April 2024 (delivering around Jan 2025). The hoppers starting from that batch and beyond have a slightly larger diameter at 58.5mm. My bellows can only fit one size, so please measure your hopper to be sure.

[Compatibility]

• Zerno Z1

[Disclaimer]

• Grinding after changing grind size or using darker roasts/oilier beans may increase retention.
• Achieve the best results with lighter roasted beans and at a consistent grind size setting.
• This listing is for the bellows only. It does not include the grinder nor the stock hopper

Introvert is not affiliated, associated, authorized, endorsed by, or in any way officially connected with Zerno, or any of its subsidiaries or its affiliates. The name Zerno as well as related names, marks, emblems and images are registered trademarks of their respective owners.