The Hario 'Canister' Coffee Mill utilises the classic design and function of the Skerton Mill, while introducing new elements of steel and wood for a stylish finish. The glass jar and airtight hopper allows left over grinds to be stored in the canister (use cork stopper provided to ensure lid is air tight), the mill also comes with a polypropylene hopper cover to stop beans from spilling out while grinding and the silicone base grip allows the mill to stay sturdy while grinding for a consistent grinding experience. Built using ceramic burrs, which hold less static charge and stay cooler during grinding, there is less frictional heat which helps prevent oxidation of coffee beans. With an easily adjustable grind setting, switching between brewing methods is no problem! Simply turn the adjustment nut right (clockwise) to make grind finer and turn left (counter clockwise) to make the grind coarser.