Composter

Composter
Item description‌[BE only]	Make bone meal
Renewable	Yes
Stackable	Yes (64)
Tool
Blast resistance	0.6
Hardness	0.6
Luminous	No
Transparent	Yes
Waterloggable	JE: No; BE: Yes
Flammable	Yes (5)
Catches fire; from lava	Yes
Map color	; 13 WOOD
Note block instrument	Bass

A composter is a block that converts some biological material into bone meal. It also serves as a farmer's job site block.

Obtaining

Breaking

Composters can be broken using any tool, though an axe is the fastest. The composter does not retain the compost inside; instead, it drops empty.

Block	Composter
Hardness	0.6
Tool
Breaking time (sec)^[A]
Default	10.9 (JE) 0.9 (BE)
Wooden	10.45 (JE) 0.45 (BE)
Stone	10.25 (JE) 0.25 (BE)
Copper	10.2 (JE) 0.2 (BE)
Iron	10.15 (JE) 0.15 (BE)
Diamond	10.15 (JE) 0.15 (BE)
Netherite	10.15 (JE) 0.1 (BE)
Golden	10.1 (JE) 0.1 (BE)
Options
Efficiency	000
Haste	001 1JEBE

Legend

incorrect tool, drops nothing
correct tool, drops nothing or something other than the block itself
correct tool, drops the block itself
italicized can be instant mined

↑ These durations ignore any other influential factors (e.g., Mining Fatigue) and are measured in seconds. For more information, see Breaking § Mining efficiency.

Natural generation

Composters generate in village farms. They can also generate in trail ruins.

Crafting

Ingredients	Crafting recipe
Any Wooden Slab

Usage

Composters can be used to recycle a selection of food and plant items into bone meal. To do so, the player must use any of a selection of items on the composter. 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. In Bedrock Edition, when the composter’s fullness increases, any entities inside are pushed up accordingly.

Composting

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. The table below lists supported items, which have different composting chances. The higher the percentage of an item, the more likely it is for it to add another layer of compost. However, when the composter is empty, any compostable item added always creates the first layer of compost, regardless of its usual composting chance.^[1] Each layer of compost has a podzol-like appearance. When the composter reaches the 7th layer of compost and once 20 game ticks (1 second) have passed, the compost changes appearance indicating that bone meal can be collected by using the composter a final time or by breaking the composter.

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. Smaller pieces (individual pieces of wheat, melon slices, etc.) produce more compost than the blocks or other items that can be made from them. The exception is cookies, because each recipe produces 8 cookies, and together those give more than 3 times the compost.

Despite being plants, it is not possible to compost bamboo,^[2] dead bushes,^[3] poisonous potatoes,^[4] chorus plant products,^[5] and golden plant items.^[6] Meat items, fish, and bones are also not compostable.^[7]

Using with a composter while holding a debug stick will raise the level by 1, and the debug stick is not consumed.

Composting chance (per item)
30%	50%	65%	85%	100%
Items
Beetroot Seeds Bush Cactus Flower Dried Kelp Firefly Bush Glow Berries Grass Block‌^{[BE only]}^[8] Hanging Roots Kelp Leaves Leaf Litter Mangrove Propagule Mangrove Roots Melon Seeds Moss Carpet Pale Hanging Moss Pale Moss Carpet Pink Petals Pitcher Pod Pumpkin Seeds Red Shrub Saplings Seagrass Short Grass Short Dry Grass Small Dripleaf Sweet Berries Tall Dry Grass Torchflower Seeds Wheat Seeds Wildflowers	Cactus Dried Kelp Block Flowering Azalea Leaves Glow Lichen Melon Slice Nether Sprouts Sugar Cane Tall Grass Twisting Vines Vines Weeping Vines	Apple Azalea Beetroot Big Dripleaf Brown Mushroom Carrot Carved Pumpkin Cocoa Beans Crimson Roots Fern Flowers Large Fern Lily Pad Melon Moss Block Mushroom Stem Nether Fungi Nether Wart Pale Moss Block Potato Pumpkin Red Mushroom Sea Pickle Shelf Mushroom Shroomlight Spore Blossom Straw Bed Warped Roots Wheat Wither Rose	Baked Potato Bread Cookie Flowering Azalea Hay Bale Mushroom Blocks Nether Wart Block Pitcher Plant Torchflower Warped Wart Block	Cake Pumpkin Pie
Average number of items to complete compost^{[note 1]}
21.00	13.00	10.23 (¹³³⁄₁₃)	8.06 (¹³⁷⁄₁₇)	7.00
Average compost yield (per stack of 64)^{[note 1]}
3.05 (⁶⁴⁄₂₁)	4.92 (⁶⁴⁄₁₃)	6.26 (⁸³²⁄₁₃₃)	7.94 (¹⁰⁸⁸⁄₁₃₇)	9.14 (⁶⁴⁄₇)
Number provider‌^{[Java Edition only]}^{[note 2]}
`low`	`low_medium`	`medium`	`medium_high`	`always_add_one`

The average number of items to complete compost can be calculated with the formula , where x is the compost chance of the given item (with 0.3 and 1 corresponding to 30% and 100% chance respectively), and y is the average number of items to complete compost. The average compost yield per stack of 64 can be calculated by simply dividing 64 by y.^{[note 1]}

Profession

If a composter has not been claimed by a villager, any nearby unemployed villager has a chance to change their profession to farmer and claim the composter as their job site block. Also, farmers can use composter to compost, and use the derived bone meal to grow crops.

Redstone component

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 between 0 and 8, proportional to how full the composter is: 0 for empty, 1 for ¹⁄₇ full, 2 for ²⁄₇ full, and so on to 6. 7 is for completely full but the bone meal is not ready to collect, and 8 for completely full and the bone meal is ready to collect.

Hoppers

Composters can interact with hoppers. A hopper directly below a composter pulls bone meal from it. A hopper or dropper facing downward directly above a composter pushes items into it. See Hopper § Redstone component for more details.

Hoppers cannot interact with the sides of a composter.

Fuel

A composter can be used as fuel in a furnace to smelt 1.5 items.

[breakingtimenote-1] These durations ignore any other influential factors (e.g., Mining Fatigue) and are measured in seconds. For more information, see Breaking § Mining efficiency.

[A]

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[note 1]

[note 2]

`wood` sound type
Sound	Closed captions	Source	Description	Identifier	Translation key	Volume	Pitch	Attenuation distance
	Block broken	Blocks	Once the block has broken	`block.wood.break`	`subtitles.block.generic.break`	1.0	0.8	16
	Block placed^{[until: JE 26.4]}	Blocks	When the block is placed	`block.wood.place`	`subtitles.block.generic.place`	1.0	0.8	16
	Block breaking	Blocks	While the block is in the process of being broken	`block.wood.hit`	`subtitles.block.generic.hit`	0.25	0.5	16
	Something falls on a block	Entity-Dependent	Falling on the block with fall damage	`block.wood.fall`	`subtitles.block.generic.fall`	0.5	0.75	16
	Footsteps	Entity-Dependent	Walking on the block	`block.wood.step`	`subtitles.block.generic.footsteps`	0.15	1.0	16

`wood` sound type
Sound	Closed captions	Source	Description	Identifier	Translation key	Volume	Pitch
	Block broken	Blocks	Once the block has broken	`dig.wood`	`subtitles.block.generic.break`	1.0	0.8–1.0
	Block placed	Blocks	When the block is placed	`place.wood`	`subtitles.block.generic.place`	1.0	0.8
	Axe strips	Blocks	When an axe strips a log or wood block ^{[sound 1]}	`use.wood`	`subtitles.block.generic.hit`	1.0	0.8
	Block breaking	Blocks	While the block is in the process of being broken	`hit.wood`	`subtitles.block.generic.hit`	0.23	0.5
	Footsteps	Players	Falling on the block with fall damage	`fall.wood`	`subtitles.block.generic.footsteps`	0.4	1.0
	Footsteps	Players	Walking on the block	`step.wood`	`subtitles.block.generic.footsteps`	0.3	1.0
	Footsteps	Blocks	Jumping from the block	`jump.wood`	`subtitles.block.generic.footsteps`	0.12	1.0
	Footsteps	Blocks	Falling on the block without fall damage	`land.wood`	`subtitles.block.generic.footsteps`	0.18	1.0

Sounds
Sound	Closed captions	Source	Description	Identifier	Translation key	Volume	Pitch	Attenuation distance
	Composter emptied^{[until: JE 26.4]}	Blocks	When a composter is emptied	`block.composter.empty`	`subtitles.block.composter.empty`	1.0	1.0	16
	Composter filled^{[until: JE 26.4]}	Blocks	When adding to a composter	`block.composter.fill`	`subtitles.block.composter.fill`	0.3	0.8	16
	Composter filled^{[until: JE 26.4]}	Blocks	When successfully adding to a composter	`block.composter.fill_success`	`subtitles.block.composter.fill`	1.0	1.0	16
	Composter composts	Blocks	When composting completes	`block.composter.ready`	`subtitles.block.composter.ready`	1.0	1.0	16
	Farmer works	Friendly Mobs	Randomly while a farmer is working	`entity.villager.work_farmer`	`subtitles.entity.villager.work_farmer`	1.0	0.8–1.2	16

Sounds
Sound	Closed captions	Source	Description	Identifier	Translation key	Volume	Pitch
	?	Blocks	When a composter is emptied	`block.composter.empty`	?	1.0	1.0
	?	Blocks	When adding to a composter	`block.composter.fill`	?	1.3	0.8
	?	Blocks	When adding to a composter ^{[sound 1]}	`item.bone_meal.use`	?	1.0	0.9–1.1
	?	Blocks	When successfully adding to a composter	`block.composter.fill_success`	?	1.3	1.0
	?	Blocks	When composting completes	`block.composter.ready`	?	1.0	1.0
	?	Blocks	Randomly while a farmer is working	`block.composter.fill`	?	1.3	0.8

Java Edition
1.14	19w03a	Added composters.
		Composter blocks are found in the "Miscellaneous" tab in the Creative inventory.^[9]
		The crafting recipe of composters is 4 fences and 3 planks.
	19w03b	All mushroom blocks can now be used in composters.
	19w04a	Composters now spawn in village farms.
	19w05a	The chances of composters have been changed from 10/20/50/80/100% to 30/50/65/85/100%.
	19w11a	Composters now serve as farmer villagers' job site block.
1.15	19w45a	The crafting recipe of composters has been changed to match Bedrock Edition.
1.16	20w06a	Moved composter blocks to the "Decoration Blocks" tab from the "Miscellaneous" tab in the Creative inventory.^[9]
	20w15a	Weeping vines, twisting vines, crimson roots, warped roots, nether sprouts, Nether fungi, nether wart, nether wart blocks, and warped wart blocks can now be composted.
	pre3	Shroomlights can now be composted.^[10]
1.17	21w05a	Azalea, dripleaves, hanging roots, glow berries, moss blocks, moss carpets and spore blossoms can now be composted.
1.17	21w11a	Glow lichen can now be composted.
1.19	22w11a	Mangrove propagule can now be composted.
	22w12a	Mangrove leaves can now be composted.^[11]
	22w15a	Mangrove roots can now be composted.^[12]
1.19.4 Experiment Update 1.20	23w07a	Torchflowers, torchflower seeds, pink petals, cherry saplings, and cherry leaves can now be composted.
1.21.2 Experiment Winter Drop	24w40a	Pale moss blocks, pale moss carpets, pale hanging moss, pale oak saplings, and pale oak leaves can now be composted.
1.21.5	25w03a	Leaf litter and wildflowers can now be composted.
26.3	snapshot 1	Red shrubs and shelf mushrooms can now be composted.
	snapshot 3	Straw beds can now be composted.
	snapshot 4	Added the `#cushion_uses_collision_shape` block tag.

Composter

Obtaining

Breaking

Natural generation

Crafting

Usage

Composting

Profession

Redstone component

Hoppers

Fuel

Sounds

Generic

Unique

Data values

ID

Block states

History

Java Edition

Bedrock Edition

PlayStation 4 Edition

Issues

Trivia

Gallery

Renders

Java Edition

Bedrock Edition

Screenshots

Notes

References

External links

More in Job blocks

Related mods

Item description‌^{[BE only]}	Make bone meal
Renewable	Yes
Stackable	Yes (64)
Tool
Blast resistance	0.6
Hardness	0.6
Luminous	No
Transparent	Yes
Waterloggable	JE: No BE: Yes
Flammable	Yes (5)
Catches fire from lava	Yes
Map color	13 WOOD
Note block instrument	Bass

Bedrock Edition
1.10.0 Experiment Experimental Gameplay	beta 1.10.0.3	Added composters.
		Composters are currently available only through Experimental Gameplay.
		The crafting recipe of composters are 7 wooden slabs.
1.11.0	beta 1.11.0.1	Added functionality like in Java Edition.
		Added level 8 "content ready" state.
		Changed models of level 0-7.
		Composters are available outside of Experimental Gameplay.
	beta 1.11.0.3	Composters now support hopper placement.
1.16.0	beta 1.16.0.57	Weeping vines, twisting vines, crimson roots, warped roots, nether sprouts, Nether fungi, nether wart, nether wart blocks, and warped wart blocks can now be composted.
1.16.100	beta 1.16.100.55	Shroomlight can now be composted.
1.16.220	beta 1.16.220.52	Azalea, dripleaves, glow berries, moss blocks, moss carpet and spore blossoms can now be composted.
1.17.0	beta 1.16.230.50	Hanging roots and glow lichen can now be composted.
1.17.0	beta 1.16.230.54	Small dripleaf can now be composted.
1.19.0	Preview 1.19.0.21	Mangrove propagules, mangrove leaves, and mangrove roots can now be composted.
1.19.70 Experiment Sniffer	Preview 1.19.70.23	Torchflower seeds can now be composted.
1.19.80 Experiment Next Major Update	Preview 1.19.80.20	Pink petals and cherry saplings, and cherry leaves can now be composted.
1.20.0	Preview 1.20.0.20	Torchflowers can now be composted.
1.20.30	Preview 1.20.20.21	Decreased the hardness and blast resistance of composters from 2 to 0.6.
1.21.50	Preview 1.21.50.20	Pale moss blocks, pale moss carpets, pale hanging moss, pale oak saplings, and pale oak leaves are now compostable.
1.21.50 Experiment Upcoming Creator Features	Preview 1.21.50.26	Added the `minecraft:compostable` item component that allows custom items to be composted.
1.21.60	Preview 1.21.60.27	Moved the `minecraft:compostable` item component out of experimental.
1.21.70	Preview 1.21.70.20	Leaf litter and wildflowers can now be composted.