burrs – Socratic Coffee

30 May 2015

Looking at Burr Sharpness and TDS in Espresso

by Joe | posted in: Grinding, Tools | 19

Abstract This experiment assessed differences in espresso total dissolved solids (TDS) as a factor of burr sharpness. Ten shots were pulled for each condition (sharp burrs, dull burrs) and TDS measured using an Atago PAL-COFFEE refractometer. Results revealed a significant … Continued

19 Apr 2015

Espresso Grinding: The Impact of Burr Sharpness on Post-Brew Water Retention

by Joe | posted in: Espresso, Grinding | 7

Abstract The goal of this study was to examine the effect of sharp versus dull grinder burrs on the ability of water to saturate a puck of espresso grinds. To assess the level of saturation, post-brew water retained in the … Continued