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Stem by Sasa Sestic

Stem – Available Now!


The Stem was created to increase workflow, improve cleanliness and protect your scales, so that you can measure every dose accurately without damaging your equipment.

Designed by the Research and Development team at ONA Coffee, Stem is designed to be lightweight, strong and easy to use and incorporate into a workspace.

Stem works as a platform between your machine and scales, protecting your scales from water damage and allowing baristas to have more room and freedom then they would with scales on their drip trays.

Product Specs:

  • Height: Adjustable between 9.5 and 13.5 cm
  • Approximate Weight: < 550g
  • Waterproof
  • Material: Aluminum alloy, stainless steel (screws)



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