Difluid Coffee Refractometer R2

Refractometer is a measurement device that can measure the dissolved solids of brewing  water and make it tared as zero point then compare it with the final cup and tells how many percentage of the coffee is extracted. The ideal extraction based on Specialty Coffee Association(SCA).

R2 series is lot more professional than the R1 series and is a real competitor for high end refractometers with much lower price and as precise and/or even more and very fast-responsive.