Cauldron

A Cauldron is a block that can hold 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.

Usage


To fill a cauldron with water, press on the cauldron with a water bucket. This will work even in the Nether. A cauldron also has a chance to fill up with water when rained upon. Once filled, a cauldron can be used to fill an empty bucket.

With water in it, a cauldron can be used to fill glass bottles (turning them into water bottles), though water bottles cannot be used to refill a cauldron. A cauldron with water can also wash dye off of leather armor or remove the top-most pattern layer of a banner. To use the cauldron, press on the cauldron with the glass bottle, leather armor or banner.

A cauldron will extinguish mobs on fire (including players) who fall into it. Each use (including extinguishing mobs) causes the water level in the cauldron to decrease by one-third. After it has been used three times, it will be empty and must be refilled before additional uses. Endermen in a filled cauldron don't take damage from the water in it.

Redstone component
A cauldron can act as a power source for a redstone comparator. With a cauldron behind it (possibly 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.

Pocket Edition
In Pocket Edition, cauldrons can hold potions. Tapping the cauldron with a potion in hand will fill the cauldron one level with the potion. The cauldron can then be tapped with an empty glass bottle to fill the bottle with the potion. Mixing potions in a cauldron will cause it to explode. Cauldrons in a witch hut will spawn filled with a random potion.

The color of water inside of cauldrons can be changed with dyes. Using this method will allow the player to dye leather armor.

Cauldrons can be refilled using water bottles.

Data values
Cauldron's fullness is defined by their block data. In future, it is planned to replace block data with block states.

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 (without commands or mods) to have water in the Nether.