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This feature is exclusive to Java Edition. 
Crafting Table
This article describes content that may be included in a future update. 
This content has appeared in development versions, but the full update containing it has not been released yet.

A composter is an block which converts crops and plants into fertilizer.

Obtaining

Crafting

Ingredients Crafting recipe
Any Wood Fence+
Any Planks

Usage

Composters can be used to produce bone meal. To do so, the player must use any of a selection of items on the composter.

When an item is used on the composter, the bottom of the composter’s appearance will sometimes turn from plank-like to podzol-like, which is the first level of composting; other times it may take several uses to get to this first level. The podzol-like bottom will sometimes get higher with each use. The chance that using the composter with an item will increase the level of it varies between items; for example, kelp has a chance of 10%, meaning that if it is used on the composter it will add a new level only 10% of the time, with the composter consuming the kelp but not taking any action the other 90% of the time. There are a total of 7 levels of composting. If the player uses the composter at its highest level, it will produce a single bone meal, which will appear as an item entity.

Composters can interact with hoppers by placing a composter on the upper side of a hopper and producing bone meal from the composter, which will cause the bone meal to go through the hopper and if there is a container under it such as a chest, furnace, or another hopper, it will end up there (see Hopper § Redstone component for more details about hopper-specific mechanics).

Compostables list

The following table shows the items that can be used in a composter, as well as the percent chance of adding a level in the composter per use:

Chance Items
10% Beetroot Seeds
Dried Kelp
Grass
Kelp
Leaves
Melon Seeds
Pumpkin Seeds
Saplings
Seagrass
Sweet Berries
Wheat Seeds
20% Cactus
Melon Slice
Sugar Cane
Tall Grass
Vines
50% Apple
Beetroot
Carrot
Cocoa beans
Ferns
Flowers
Lily Pad
Melon
Mushrooms
Potato
Pumpkins
Sea Pickle
Wheat
80% Baked Potato
Bread
Cookie
Hay Bale
100% Cake
Pumpkin Pie

Data values

Block states

Java Edition:

Name Default value Allowed values Description
level00
1
2
3
4
5
6
7
8
When at level 8, bone meal is able to be collected from the composter.

Bedrock Edition:

NameMetadata Bits Default value Allowed valuesValues for
Metadata Bits
Description
composter_fill_level0x1
0x2
0x4
0x8
00
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
When at level 8, bone meal is able to be collected from the composter.

History

Upcoming Java Edition
1.14
{{Extension DPL}}<ul><li>[[Ice Bomb|Ice Bomb]]<br/>{{education feature}}
{{exclusive|bedrock|education}}
{{ItemEntity
|image=Ice Bomb.png
|renewable=No (unless [[Material Reducer]] is available)<!-- Well, CHO are everywhere in sugar and charcoal, and sodium is in cobblestone... -->
|stackable=Yes (16)
|size=Height: 0.25 Blocks<br>Width: 0.25 Blocks
}}
The '''ice bomb''' is an [[item]] that is used to freeze [[water]] into [[ice]].

== Obtaining ==

=== Lab Table ===

{| class="wikitable"
! Result
! Materials Needed
|-
!rowspan=2|{{slot|Ice Bomb}}<br>[[Ice Bomb]]
|{{slot|Sodium Acetate|link=Compound#List_of_compounds}}{{slot|Sodium Acetate|link=Compound#List_of_compounds}}{{slot|Sodium Acetate|link=Compound#List_of_compounds}}{{slot|Sodium Acetate|link=Compound#List_of_compounds}}
|-
|<center>[[Compound#List_of_compounds|Sodium Acetate]] x4</center>
|}

== Usage ==

Ice bombs can be thrown by {{control|using}} them. They are affected by gravity.

Like with [[ender pearl]]s, there is a short cooldown before the player can throw another ice bomb. The cooldown is shown in the [[hotbar]] by a white overlay that shrinks before the player is able to use it again.

Ice bombs explode upon hitting most [[blocks]], including non-solid blocks, but not [[air]]. They also explode upon hitting other entities, but do not deal [[damage]], and unlike [[egg]]s and [[snowball]]s, their impact is not considered an attack and does no damage or knockback. When exploding, any [[water]] (including flowing water, but not [[waterlogged]] blocks) in a 3×3×3 cube around the ice bomb freezes into [[ice]]. Ice bombs can be used to contain and displace [[mobs]] in ice under water.

While [[endermen]] teleport away from arrows shot at them, they can be hit by ice bombs. 

Throwing an ice bomb while underwater encloses the player in ice.

{| class="wikitable"
|+Ice bomb arrangement table
!y\x
!-2
!-1
!0
!1
!2
|-
!64
|Air
|Air
|Air
|Air
|Air
|-
!63
|Air
|Air
|Ice bomb
|Air
|Air
|-
!62
!Water
!Ice
!Ice
!Ice
!Water
|-
!61
!Water
!Ice
!Ice
!Ice
!Water
|-
!60
!Water
!Water
!Water
!Water
!Water
|}

== Sounds ==
{{Sound table
|type=bedrock
|sound=Zombie breaks door.ogg
|source=hostile
|description=When an ice bomb is created by a [[lab table]]
|id=mob.wither.break_block
|volume=0.5
|pitch=1.1/1.3}}
{{Sound table
|sound=Glass dig1.ogg
|sound2=Glass dig2.ogg
|sound3=Glass dig3.ogg
|source=block
|description=When an ice bomb impacts something
|id=random.glass
|volume=1.0
|pitch=1.4/1.6
|foot=1}}

== Data values ==
=== ID ===
{{ID table
|edition=bedrock
|firstcolumnname=Ice Bomb
|shownumericids=y
|showforms=y
|notshowbeitemforms=y
|generatetranslationkeys=y
|displayname=Item
|spritename=ice-bomb
|spritetype=item
|nameid=ice_bomb
|id=595
|form=item
|foot=1}}
{{ID table
|edition=bedrock
|firstcolumnname=Ice Bomb
|shownumericids=y
|generatetranslationkeys=y
|displayname=Entity
|spritename=ice-bomb
|spritetype=entity
|nameid=ice_bomb
|id=106
|foot=1}}

== History ==

{{History|bedrock}}
{{History||1.4.0|snap=beta 1.2.20.1|[[File:Ice Bomb BE1.png|32px]] Added ice bombs.}}

{{History|education}}
{{History||1.0.27|[[File:Ice Bomb BE1.png|32px]] Added ice bombs.}}
{{History|foot}}

== Trivia ==

* In real life, mixing a sufficient amount of sodium acetate in water does solidify it, but creates [[wikipedia:Sodium acetate#Heating pad|hot ice]] (sodium acetate trihydrate) instead of normal ice.

{{items}}
{{entities}}
{{Education Edition}}

[[Category:Non-renewable resources]]
[[Category:Education Edition items]]
[[Category:Education Edition entities]]

[[pl:Lodowa bomba]]
[[de:Eisbombe]]
[[ja:氷の爆弾]]
[[ko:얼음 폭탄]]
[[lzh:冰丸]]
[[pt:Bomba de gelo]]
[[zh:冰弹]]</li><li>[[:Category:Minecraft: Story Mode items|Category:Minecraft: Story Mode items]]<br/>[[Category:Minecraft: Story Mode]]
[[Category:Items]]</li></ul>
19w03aAdded composters.

Issues

Issues relating to "Composter" are maintained on the bug tracker. Report issues there.

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