Conical Burr Grinder Reviews & Comparisons Here’s a list of conical burr grinder comparisons we’ve done so far: Breville Smart Grinder vs. Rancilio Rocky Coffee Grinder Breville Smart Grinder vs. Capresso Infinity Burr Grinder Bodum Bistro Conical Burr Grinder vs Capresso Infinity Baratza Virtuoso vs Preciso vs Encore Conical Burr Grinder