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Zerno Z1 Wide Steel Hopper + Silicone Bellows Combo

Regular price $89.00 USD
Regular price $82.00 USD Sale price $89.00 USD
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Shipping calculated at checkout.

This Wide Hopper for the Zerno Z1 offers an easier dosing experience and is designed to perfectly fit our Silicone Bellows to help you clear out the retention and chaff inside the grinder and chute, reaching up to 0.0g retention. Our very first, super limited batch is available to ship now!

This hopper replaces your Zerno Z1 stock hopper.


[Optional Wood Cap]

We've partnered with Five Ounce Design to bring you a custom wooden cap that's tailored to fit our Wide Steel Hopper for the Zerno Z1. It's designed to match the aesthetics and wood of your Zerno Z1 and will fit over our bellows. Add the cap to your cart here:

[Design Features]

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

  • Wider hopper allows you to pour your doses in with ease
  • Combo with our Bellows to reach up to 0.0g retention
  • Made with 316 Stainless Steel for ultimate corrosion resistance
  • Capacity of about 35g (dark) to 45g (light-medium) of beans within hopper only (more between hopper and auger)
  • Brushed outer and polished inner surface treatment
  • The hopper follows the aesthetic of the grinder's original hopper design
  • Optional custom matching wooden cap
  • Super easy installation takes less than a minute
  • No tools necessary for installation
  • No internal modifications needed


  • Zerno Z1
  • (Optional bellows is fully compatible with Niche Zero & Duo, as well as all our other Introvert Single Dose Hoppers)


  • 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 Wide Hopper and optional bellows only. It does not include the grinder nor 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.


Hopper: Stainless Steel 316
Bellows: Silicone Rubber


Care Instructions

• Keep bellows away from heat (40+°C / 104+°F) or it may deform permanently
• To clean, wipe the bellows with a damp (cool water) towel
• Do not put in dishwasher