Hario Polaris Coffee Scale

The POLARIS Smart Scale, by Hario is designed to weigh coffee, calculate extraction ratios and assist in parsing out pours, and display your brew’s progress. 

The handy ratio calculation function helps you determine the perfect recipe for the amount of coffee beans you have to brew and clearly displays the specifications on the digital screen.

The scale accurately calculates the amount of water used per pour and assists you in achieving those volumes in real time. The percentage of your brew completed is shown on screen.