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Bellows Upgrade for Baratza Virtuoso / + - Near Zero Retention

Regular price $35.00 CAD
Regular price $35.00 CAD Sale price $35.00 CAD
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Say goodbye to the usual retention when single dosing, and instead get much closer to your exact dose every time*. This 3D printed flexible bellows fits in between your machine's stock hopper and stock lid and transforms it into a blower, allowing you to achieve 0.0g - 0.1g retention on every grind*.


Pre-order for the silicone version of this bellows is now available! Estimated ship date is mid-August, 2024. If you purchase the 3D printed version instead, you can receive a coupon for upgrading to the silicone version until August 15, 2025.


[Design Features]

Simplicity and maximum effectiveness are our design goals, and both are carefully infused in our 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
  • Small manual included with assembly instructions and best use tips
  • Bellows works even if you prefer to store beans in the hopper (though less effectively)


This bellows is compatible with:

  • Virtuoso
  • Virtuoso+

And is also compatible with:

  • Encore
  • Sette 30
  • Sette 270
  • Sette 270Wi
  • Vario+
  • Vario W+
  • Vario
  • Vario W
  • Forte AP
  • Forte BG


  • Grinding after changing grind size or using darker roasts/oilier beans may still cause some retention
  • Achieve the best results with lighter roasted beans and at a consistent grind size setting
  • The coarser you grind, the more likely you'll achieve zero retention
  • The more beans you store in the hopper, the more possible retention there may be
  • Does not include the grinder nor the stock hopper


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


TPU (Thermoplastic Polyurethane)


13.6cm Diameter x 3.2cm Tall

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

Customer Reviews

Based on 11 reviews
Chris T
Works Perfectly!

35 grams in 35 grams out! Was quick and easy to add to my grinder and a great addition to my setup!


Product is good quality, arrived quickly, works well :)

(Review From Etsy)

(Review From Etsy)

(Review From Etsy)

(Review From Etsy)

(Review From Etsy)

(Review From Etsy)