rich espresso with velvety crema in under five minutes

The scale can measure weight down to a tenth of a gram

offering strength without excess weight

Want iced coffee instead

even with VST baskets

VST LAB Coffee III Refractometer Melitta rich espresso with velvety cremaThe VST LAB Coffee III Refractometer is a tool that has been used for measuring coffee & espresso Total Dissolved Solids (TDS) to understand the efficiency and quality of brewing through extraction. VST Labs have advanced the Refractometer with the latest fourth generation that provides laboratory precision that comfortably fits into the palm of your hand. The Lab III Refractometer has an expected accuracy of + 0. 02% and worst case precision of + 0.