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Brewing Equipment


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The STEM protects your scale, increase workflow and improve cleanliness. It was developed by the fine folks at ONA Coffee.

The STEM is a platform between the espresso machine and the scale that gives room for the baristas and protects the scale from any water damage. 

Designed by the Research and Development team at ONA Coffee. To see the STEM in use, check out the video from the ONA Group below. Expand to full screen for the optimal viewing experience.

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Product Details

  • Height: Adjustable between 9.5 and 13.5 cm
  • Approximate Weight: 515g (+-10g)
  • Waterproof
  • Material: Aluminum alloy, stainless steel (screws)
  • Colour: Matte black
  • Suitable for: Sanremo Cafe Racer, Sanremo Opera, Vittoria Arduino Black Eagle, Slayer, Kees van der Westen, La Marzocco Strada, La Marzocco Leva (height adjustment feet available for other machines)