Handmade Mason Jar Wood Turned Lid with Espresso Grinder. A discussion piece and it grinds your coffee as you view it fill the mason jar. One quart jar and it has an adjustable grinding system. The housing is produced of iron and the grinding system is ceramic. The lid is hand turned on a lathe with meticulous precision making use of good quality hardwood. The device is connected by screws and sealed forever to the lid to keep away from any likelihood of the system and lid detaching alone or and coffee leaking by means of the lid. This good quality grinder will be handed down to generations and employed for many a long time of provider.