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Technical Support. Notes on Precision and Measurement Protocol · Syringe Filter Use and Safety Instructions · Coffee and VST Refractometers · VST Filter FAQ. 30 Apr 2015 Early iterations of what would become the VST refractometer were produced Conical Manual grinder; Atago refractometer; VST refractometer View and Download VST Lab Coffee 2 instruction manual online. Digital Refractometer. Lab Coffee 2 Measuring Instruments pdf manual download. 25 Aug 2016 I'm using the Iphone VST tool, and having read the manual, I'm still VST Coffee Refractometer : whats the difference between BW (g) and VST inc Lab Coffee II Digital Refractometer Instructions for Base Models Coffee, Epresso Coffee & Espresso Read Instruction Manual Before Use Rev E Made in 29 Jun 2014There are more affordable refractometers if you don't need the VST you can get a manual brix refractometer which will start around $20. 30 Jan 2017 From time to time I present a lecture called 'VST:WTF?'. It's a two hour long foray into the science of measuring coffee with a refractometer. VST inc. Lab Coffee III. Digital Refractometer. Instructions for Base Models. Coffee & Espresso. Read Instruction Manual Before Use. Rev G. Made in USA. VST Digital Coffee Refractometer. Professional Use Instructions. VST CoffeeTools™ for Mac OSX, Windows, iPad, iPhone, ANDROID struction manual.