Cauldron

A cauldron is a block that can hold water and, in Pocket Edition, potions and dyed water.

Obtaining
Cauldrons can be mined using any pickaxe. If mined without a pickaxe, it will drop nothing. When a cauldron is destroyed, any water inside it will be lost.

Crafting
A cauldron can be crafted from iron ingots.

Natural generation


A single empty cauldron is generated in each witch hut and in each igloo with a basement. The cauldron in a witch hut will generate filled with a random potion.

Water
A cauldron can be filled with water by a water bucket on the cauldron. Once completely filled, a cauldron can be used to fill water buckets by an empty bucket on the cauldron.

One level of water can be added to a cauldron by a water bottle on it. In any edition, one level of water can be removed from a cauldron, filling a water bottle, by a glass bottle on it.

A cauldron will slowly fill up with water when rained upon.

Water can be stored in a cauldron even in the Nether.

Endermen in a filled cauldron don't take damage from the water in it.

Dyes
A cauldron with water can wash the dye off of leather armor, and can remove the top-most pattern layer of a banner, by pressing on the cauldron with the leather armor or banner in hand. In the computer edition, this does not consume or change the water from the cauldron. In Pocket Edition, each wash reduces the water in the cauldron by one level.

A cauldron can hold dyed water. Tapping the cauldron with a dye in hand will color the water, consuming the dye. Different dyes may be added to produce mixed colors. Tapping leather armor or leather horse armor on the cauldron will dye that item the color of the water, reducing the water in the cauldron by one level for each item dyed.

Attempting to add water or potion to dyed water will empty the cauldron.

Potions
A cauldron can hold potions. Tapping the cauldron with a potion in hand will fill the cauldron one level with the potion, and turn the potion to a glass bottle. The cauldron can then be tapped with an empty glass bottle to fill the bottle with the potion.

Tapping on a cauldron with a normal arrow in hand will turn it into a tipped arrow with that potion effect, and reduce the potion in the cauldron by one level.

Mixing potions in a cauldron, or attempting to add water, will cause it to make an explosion sound, and the potion will disappear from the cauldron.

Extinguishing fire
A cauldron will extinguish mobs on fire (including players) that fall into it. Each mob extinguished causes the water in the cauldron to decrease by one level.

Redstone component


A cauldron can act as a power source for a redstone comparator. With a cauldron behind it (either directly, or separated by an unpowered solid block), a comparator will output a signal strength proportional to how full the cauldron is: 0 for empty, 1 for one-third full, 2 for two-thirds full, and 3 for completely full.

Data values
A cauldron's fullness is defined by its block data. In the future, it is planned for block states to replace block data.

Block entity
In Pocket Edition, a cauldron has a block entity associated with it that holds additional data about the block. The block entity has the id name.

Trivia

 * Arrows "stick" to the water in a cauldron.
 * Flaming arrows fired at the side of a full cauldron will cause the water to deplete.
 * If you try to sneak over a cauldron, you can still fall in.
 * The inside of a cauldron is 0.3125 (5/16) blocks tall.
 * A cauldron holding water is the only way to have water in the Nether.