Mark from explains the new Baratza Esatto, an innovative attachment that will let you operate your grinder using real-time, weight-based controls. Compatible with the Virtuoso and Preciso grinders,the Esatto is designed for precision; it can grind and dose the exact amount of coffee programmed by the user, with a minuscule 0.2-gram margin of error. The Esatto is an economical option for coffee and espresso enthusiasts wishing to upgrade their existing Baratza grinder.