|This feature is exclusive to Java Edition, Bedrock Edition and PlayStation 4 Edition.|
|Breaking time[note 1]|
- Times are for unenchanted tools in seconds.
|Composter||Any wood Fence +
|[Java Edition only]|
|Composter||Any wood Slab||[Bedrock and PlayStation 4 editions only]|
Composters can generate in farms in villages.
Composters can be used to produce bone meal. To do so, the player must use any of a selection of items on the composter. The composter can also be used to recycle unneeded plant items. When an adjacent comparator is facing away from the composter, a comparator signal strength of up to 8 is emitted depending on the fullness of the block.
Composters appear to have an empty interior. As such, entities can enter and exit a composter through the top, but not the sides or bottom. The composter has a “floor”, whose height depends on the fullness. When the composter is completely empty, this floor is slightly above the block below, and when it is completely full, there is a slight dip on top. When the composter’s fullness increases, any entities inside will be pushed up accordingly.
The composter can be filled with compost, which is done by adding compostable items to it. When successfully adding an item, a green particle appears. See the table below for all supported items. These items have different levels of compostability. The higher the percentage of an item, the more likely it is for that item to add another layer of compost to the block when used on it. Each layer of compost has a podzol-like appearance. When the composter reaches the 7th layer of compost, the compost changes appearance indicating that bone meal can be collected by using the composter a final time.
The following table shows the items that can be used in a composter, the percent chance for an item to add a level of compost, and the average number of items needed to fill a composter:
|Average number of items required to fill a composter|
Composters can interact with hoppers. A hopper directly below a composter will pull bone meal from it. A hopper directly above a composter will push items into it. See Hopper § Redstone component for more details.
Hoppers cannot interact with the sides of a composter.
Changing villager profession
A composter can act as a power source for a redstone comparator. With a composter behind it (either directly, or separated by an unpowered solid block), a comparator outputs a signal strength proportional to how full the composter is: 0 for empty, 1 for one-seventh full, 2 for two-sevenths full, 3 for three-sevenths full, 4 for four-sevenths full, 5 for five-sevenths full, 6 for six-sevenths full, 7 for completely full but the bone meal is not ready to collect, 8 for completely full and the bone meal is ready to collect. However, if there is a block between the composter and comparator, the comparator does not immediately update.
A composter can be used as fuel in a furnace to smelt 1.5 items.
|Name||Default value||Allowed values||Description|
|level||When at level 8, bone meal is able to be collected from the composter.|
|19w03b||All mushroom blocks can now be used in composters.|
|19w04a||Composters now spawn in village farms.|
|19w05a||Chances changed from 10/20/50/80/100% to 30/50/65/85/100%.|
|1.10.0||beta 126.96.36.199||Added composters, which are available only through Experimental Gameplay with a different crafting recipe.|
|1.11.0||beta 188.8.131.52||Added composter functionality.|
|beta 184.108.40.206||Composters now support hopper placement.|
|PlayStation 4 Edition|