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VST

The company founded by Vince Fedele that makes the industry-standard refractometer, laser-etched baskets, and ExtractMojo software.

Category: Extraction — Measurement & Science

An American company that produces precision espresso baskets (VST Precision Filter Baskets) and digital refractometers (VST LAB Coffee). VST Inc. has been a major influence on specialty coffee science and measurement.

Why it matters — VST baskets set the standard for what a precision basket means — laser-cut holes in a uniform pattern, with calibrated dose capacity (15g, 18g, 20g, 22g). VST refractometers are the original specialty-coffee TDS measurement tool.

Good to know

  • VST baskets are interchangeable with most 58 mm portafilters but check the ridged/ridgeless spec.
  • Replace VST baskets every 2–3 years on serious daily use — even precision baskets wear with thousands of brews.