= Quern / Millstone
The ''Quern'' or ''Millstone'' is a machine (can be automated or manual with a lever) that grinds-up material into fine powder or dust.  This is useful for such things as turning bone into bonemeal, wheat into flour, or iron ore into red dust.

[[Image(querns.jpeg)]]

== Craft the Quern
First craft the quern using six stone blocks.  The quern is not completed yet, it still needs a lever if you are going to operate it manually.

[[Image(quern-recipe.jpeg)]]

== Placing the Quern
Querns can only be placed on a solid and hard foundation, they cannot be placed just anywhere like Vanilla blocks can.  Place your quern on something solid like stone or bricks (wood is not considered a solid foundation and won't support a quern).

== The Lever
If you intend to operate the quern manually then craft a lever (from a stick and cobblestone) and place it on-top of the quern.  Since the quern is a machine you will have to hold the '''Shift''' key (same key used for crouching) while you right-click with the lever to place it on the quern, otherwise if you right-click without holding shift then it will open the quern's GUI instead.

[[Image(quern-crouch-place-lever.jpeg)]]

== Using the Quern
To use the quern you simply pull the lever as if you were flipping the lever / switch.  You can only pull it once per second, this is slow and it is not a bug, it is a feature.  Querns are very heavy and hard to operate due to the inertia involved, so it might be a good idea to build more than one quern and try to operate them concurrently.  Also be aware that operating a quern consumes a lot of calories and makes you very hungry.  Watch your hunger bar, as you operate the quern you will use up food shanks quite rapidly.

If you right-click the quern to bring-up the GUI you can check on the progress of your recipe:

[[Image(quern-operation.jpeg)]]

'''HINT''': Use [wiki:/CraftGuide#MachineRecipes] to find-out all the available quern recipes.