A composter is a block which converts crops and plants into bone meal.
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. 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.
Levels
The composter can be filled with compost, which is done by adding compostable items to it. See the table further 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 will change appearance indicating that bone meal can be collected by using the composter a final time.
Hoppers
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). Hoppers cannot be drawn into the sides of composters.
Hoppers can also push items into the composter from above.
Compostable list
The following table shows the items that can be used in a composter, the percent chance of adding a level in the composter per use, and the item count required for a 50% chance to add a level:
| 10% | 20% | 50% | 80% | 100% |
|---|---|---|---|---|
|
|
||||
| Number of items required for a 50% chance to add a level | ||||
| ≈ 6.58 | ≈ 3.11 | 1 | ≈ 0.43 | Not Applicable |
Data values
Block states
| Name | Default value | Allowed values | Description |
|---|---|---|---|
| level | 0 | 012345678 | When at level 8, bone meal is able to be collected from the composter. |
| Name | Metadata Bits | Default value | Allowed values | Values for Metadata Bits |
Description |
|---|---|---|---|---|---|
| composter_fill_level | 0x10x20x40x8 | 0 | 012345678 | 012345678 | When at level 8, bone meal is able to be collected from the composter. |
History
| Upcoming Java Edition | |||||
|---|---|---|---|---|---|
1.14{{Extension DPL}}<ul><li>[[Kelp|Kelp]]<br/>{{About|the plant|the dried variant|Dried Kelp}}
{{For}}
{{Block
|image=Kelp.gif
|invimage=Kelp
|transparent=Yes
|tool=Any
|renewable=Yes
|stackable=Yes (64)
|flammable=No
|lavasusceptible=No
|light=No
|hardness=0}}
'''Kelp''' is an underwater plant that generates in most [[ocean]]s.
== Obtaining ==
=== Natural generation ===
Kelp naturally generates in any [[ocean]] [[biome]]s (except in [[Frozen Ocean|frozen]], [[Deep Frozen Ocean|deep frozen]] and [[Warm Ocean|warm]]), near and around [[seagrass]]. Each chunk has {{frac|1|18}} chance to generate a [[vegetation]] of kelp.
=== Breaking ===
Kelp can be mined instantly with any [[tool]] or with the player's fist. Removing water from the kelp block destroys the kelp. Breaking one part of a kelp stalk destroys all kelp [[block]]s above it. Each block drops a kelp [[item (entity)|item]].
=== Trading ===
Kelp can be bought from [[wandering trader]]s for 3 emeralds.
== Usage ==
Kelp can be placed underwater by hand, or anywhere by the use of [[commands]] such as {{cmd|setblock}}. Placing it by hand gives it a random {{code|age}} value between 0 and 24. Kelp can be placed only in [[water]] source blocks or downward-flowing water, not horizontally flowing water.
When placed in downward-flowing water, the flowing water transforms into a water source block,<ref>{{bug|MC-134229}}</ref> which is useful for faster [[bubble column]] elevator creation.
Any building block can be placed on top of a kelp plant, which is useful for building structures over a deep ocean without needing to build from the ocean floor (see also [[lily pad]]).
=== Cooking ingredient ===
{{smelting
| showname = 1
| Kelp
| Dried Kelp
| 0.1
}}
=== Composting ===
Placing kelp into a [[composter]] has a 30% chance of raising the compost level by 1.
=== Growth mechanics ===
Kelp can be planted on a broad variety of blocks. It grows underwater if it has either a source block of water or, {{in|Java}}, flowing water above it.<ref>{{bug|MC-133354}}</ref> Neither [[player]]s nor [[dispenser]]s can remove the water source block that kelp grows in without breaking the kelp first.
Kelp does not require any [[light]] level to grow. Kelp also grows without having [[sky]] access. [[Bone meal]] can be used to grow kelp by 1 block on each use.
Kelp, when planted, is generated with a randomly chosen age value, which can be checked when pressing [[Debug screen|<kbd>F3</kbd>]]{{only|java}}. The age value of a newly planted kelp plant varies randomly from 0 to 24. Each time the kelp grows in height by one block, the newly generated top of the kelp plant increases its age by 1. When the top block of the kelp plant reaches an age of 25, it stops growing. This means that kelp can naturally grow to a height between 2 (if the first kelp plant had an age of 24) and 26 blocks (if the first kelp plant had an age of 0).
When a kelp plant block is broken, the age of the kelp plant block underneath is randomized to a value from 0 to 24 and the kelp continues growing until it reaches age 25. It is possible to use this mechanic to cultivate a kelp plant to increase its growth height beyond its natural maximum height of 26 blocks. This can be done by breaking the top-most block of the kelp plant each time it reaches age 25. A kelp plant cultivated by a player in this way repeatedly grows until it reaches the water surface.
Each time it receives a [[random tick]], kelp has a 14% chance of growing.
If [[shears]] are used on the topmost block of kelp, that block automatically sets its {{cd|age}} value to {{cd|25}} and stop growing.{{only|JE}}
=== Farming ===
{{Main|Tutorials/Kelp farming}}
Kelp farming is similar to farming [[sugar cane]], although kelp must be placed underwater. Automation of harvest is easier because items float up in water.
== Sounds ==
=== Generic ===
{{Sound table/Block/Wet grass}}
=== Unique ===
{{edition|java}}:
{{Sound table
|sound=Shear.ogg
|subtitle=Plant cropped
|source=block
|description=When the tip of kelp is cropped with [[Shears#Cropping growing plants|shears]]
|id=block.growing_plant.crop
|translationkey=subtitles.block.growing_plant.crop
|volume=1.0
|pitch=1.0
|distance=16
|foot=1}}
{{edition|bedrock}}: ''None''
== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|showforms=y
|generatetranslationkeys=y
|displayname=Kelp
|spritetype=block
|nameid=kelp}}
{{ID table
|displayname=Kelp Plant
|spritetype=block
|nameid=kelp_plant
|form=block
|foot=1}}
{{edition|bedrock}}:
{{ID table
|edition=bedrock
|firstcolumnname=Kelp
|shownumericids=y
|showforms=y
|generatetranslationkeys=y
|displayname=Item
|spritename=kelp
|spritetype=item
|nameid=kelp
|id=382
|form=item}}
{{ID table
|displayname=Block
|spritename=kelp
|spritetype=block
|nameid=kelp
|id=393
|form=block
|itemform=item.kelp
|translationkey=-
|foot=1}}
=== Block states ===
{{see also|Block states}}
{{/BS}}
== History ==
{{History|java classic}}
{{History||May 21, 2009|link=https://web.archive.org/web/0/http://notch.tumblr.com/post/110762705/my-list-on-tile-types-so-far|[[Notch]] shows interest in adding a "[[seaweed]]" [[block]].}}
{{History|java}}
{{History||November 18, 2017|link={{YouTubeLink|mAapz_nIC_Y}}|Kelp plants were shown in a clip of [[MineCon Earth]].}}
{{History||1.13|snap=18w07a|[[File:Kelp JE1 BE1.gif|32px]] [[File:Kelp (item) JE1 BE2.png|32px]] Added kelp.}}
{{History|||snap=18w07b|Kelp now behaves more like [[water]], meaning [[mob]]s can no longer spawn within the plant under water nor can they replenish their breath by [[swimming]] through it.}}
{{History|||snap=18w10a|[[File:Kelp JE2.gif|32px]] The texture for kelp has been overhauled.}}
{{History|||snap=18w14a|[[File:Kelp.gif|32px]] Top of the kelp textures have been shifted slightly downward.
|The generation rules for kelp have been changed, it now mainly generates in [[cold ocean]] [[biome]]s and can no longer generate in [[warm ocean]]s.}}
{{History|||snap=18w20a|The {{cd|kelp_top}} has been changed ID to {{cd|kelp}} and {{cd|kelp}} has been changed to {{cd|kelp_plant}}, for both the [[block]] and [[item]] forms.}}
{{History|||snap=pre2|Kelp is now destroyed by [[sponge]]s.<ref>{{bug|MC-127111}}</ref>}}
{{History|||snap=pre6|Added 5 new [[sound]] events that apply to kelp: <code>block.wet_grass.break</code>, <code>block.wet_grass.fall</code>, <code>block.wet_grass.hit</code>, <code>block.wet_grass.place</code>, and <code>block.wet_grass.step</code>.}}
{{History||1.14|snap=19w03a|Placing kelp into the new [[composter]] has a 10% chance of raising the compost level by 1.}}
{{History|||snap=19w05a|Kelp now has a 30% chance of increasing the compost level in a composter by 1.
|Added [[Wandering Trader|wandering trader]]s, which sell kelp.}}
{{History||1.16|snap=20w11a|Kelp can now be grown with [[bone meal]].}}
{{History|||snap=20w13a|Kelp has been moved from the Miscellaneous tab to the Decoration Blocks tab in the [[Creative inventory]].<ref name="misc decoration">https://bugs.mojang.com/browse/MC-174434</ref>}}
{{History||1.17|snap=20w46a|Kelp no longer generates on magma blocks.<ref>{{Bug|MC-185605|resolution=Fixed}}</ref>}}
{{History||1.18|snap=21w37a|Kelp now stops growing if [[shears]] are used on the tip.}}
{{History|bedrock}}
{{History||1.4.0|snap=beta 1.2.14.2|[[File:Kelp JE1 BE1.gif|32px]] [[File:Kelp (item) BE1.png|32px]] Added kelp.}}
{{History|||snap=beta 1.2.20.1|[[File:Kelp (item) JE1 BE2.png|32px]] The kelp [[item]] texture has been updated to the {{el|je}}'s.}}
{{History||1.5.0|snap=beta 1.5.0.4|[[File:Kelp.gif|32px]] The texture of the kelp plant has been updated.}}
{{History||1.10.0|snap=beta 1.10.0.3|Kelp can now be bought from [[wandering trader]]s for 3 [[emerald]]s.}}
{{History||1.11.0|snap=beta 1.11.0.1|Kelp can now be used to fill [[composter]]s.}}
{{History|console}}
{{History||xbox=TU69|ps=1.76|wiiu=Patch 38|[[File:Kelp.gif|32px]] [[File:Kelp (item) JE1 BE2.png|32px]] Added kelp.}}
{{History|foot}}
== Issues ==
{{issue list}}
== Trivia ==
* In real life, [[wikipedia:kelp|kelp]] is not considered a [[wikipedia:plant|plant]]. It is classified by scientists as a [[wikipedia:Brown algae|brown algae]].
** Kelp in real life absorbs nutrients directly from the water, instead of through its root-like structure, [[wikipedia:Holdfast (biology)|holdfast]], which merely attaches it to the seabed. This is in accordance with kelp being able to grow on almost any solid block in ''Minecraft''.
== Gallery ==
<gallery heights="60">
SeaPlantsMineConEarth2017.jpg|Kelp shown in a clip from MINECON Earth 2017.
Kelp in ocean with Jappa textures.jpg|Naturally generated kelp in an [[ocean]] biome.
Kelp on shoreline.png|Naturally generated kelp near the shore.
Ocean life.png|An ocean with kelp visible in the far distance.
Kelp on Land.png|Kelp placed outside of [[water]] using the {{cmd|setblock}} command before 18w07b.
Waterless kelp.png|What kelp looks like without water (water removed using a [[resource pack]]).
Coral reef at night.png|Kelp within a [[coral reef]].
Floating Kelp.png|Kelp that generated in mid-air due to an [[ocean monument]]'s water cutting through it.
Kelp in ocean.jpg|Multiple kelps.
Kelp 255 blocks tall.png|Without obstacles, kelp can grow all the way to building limit.
ArgoMajor Kelp.jpg|First image of kelp in ''Bedrock Edition''.
</gallery>
== References ==
{{reflist}}
{{Blocks|vegetation}}
{{Items}}
[[Category:Plants]]
[[Category:Natural blocks]]
[[Category:Non-solid blocks]]
[[de:Seetang]]
[[es:Alga]]
[[fr:Algue]]
[[ja:コンブ]]
[[ko:켈프]]
[[pl:Wodorosty]]
[[pt:Alga]]
[[ru:Ламинария]]
[[th:สาหร่ายทะเล]]
[[zh:海带]]</li><li>[[Spider Eye|Spider Eye]]<br/>{{Item
| title = Spider Eye
| image = Spider Eye.png
| renewable = Yes
| heals = {{Hunger|2}}
|effects={{EffectLink|Poison}} (0:05)
| stackable = Yes (64)
}}
A '''spider eye''' is a poisonous [[food]] and [[brewing]] item.
== Obtaining ==
=== Mob loot ===
==== Spiders ====
[[Spider]]s and [[cave spider]]s have a {{frac|1|3}} chance of dropping a [[spider eye]] when killed by a player or tamed wolf, but not when killed by environmental damage (such as falling). The maximum amount of spider eyes is increased by 1 per level of [[Looting]]. The chance of a spider '''not''' dropping any spider eyes can be found using the formula <code>2 / (Looting Level + 3)</code>. For example, Looting III gives a {{frac|1|3}} chance of not dropping any spider eyes. All other amounts have an equal chance of occurring.
==== Witches ====
[[Witch]]es have a chance of dropping 0–6 spider eyes upon death. This is increased by 3 per level of [[Looting]], for a maximum of 0-15 spider eyes.
=== Chest loot ===
{{LootChestItem|spider-eye}}
== Usage ==
=== Food ===
When [[Food|eaten]], a spider eye restores {{hunger|2}} [[Hunger|hunger points]] and 3.2 [[Hunger#Mechanics|saturation points]], giving a nourishment value of 1.6. It also applies a [[Poison]] [[effect]] lasting 5 seconds to the player, causing {{hp|4|poisoned=1}} damage, which reduces hunger/saturation by 6 points.
=== Crafting ingredient ===
{{crafting usage}}
=== Brewing ingredient ===
{{brewing
|showname=1
|head=1
|Spider Eye
|Mundane Potion
|base=Water Bottle
}}
{{brewing
|foot=1
|Spider Eye
|Potion of Poison
}}
==Sounds==
{{Sound table/Entity/Food}}
== Data values ==
=== ID ===
{{edition|java}}:
{{ID table
|edition=java
|showforms=y
|generatetranslationkeys=y
|displayname=Spider Eye
|spritetype=item
|nameid=spider_eye
|form=item
|foot=1}}
{{edition|bedrock}}:
{{ID table
|edition=bedrock
|shownumericids=y
|showforms=y
|notshowbeitemforms=y
|generatetranslationkeys=y
|displayname=Spider Eye
|spritetype=item
|nameid=spider_eye
|id=278
|form=item
|foot=1}}
== Advancements ==
{{load advancements|Husbandry;A Balanced Diet}}
== Video ==
<div style="text-align:center">{{yt|-PD-wX07TCg}}</div>
== History ==
{{History|java}}
{{History||1.0.0|snap=Beta 1.9 Prerelease 2|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.
|Spider eyes can be used to craft [[fermented spider eye]]s.}}
{{History|||snap=Beta 1.9 Prerelease 3|Spider eyes can now be [[brewing|brewed]] in a [[water bottle]] to create a [[Mundane Potion]], or in an [[Awkward Potion]] to create a [[Potion of Poison]].}}
{{History||1.4.2|snap=12w38b|Spider eyes can now be dropped by [[witch]]es.}}
{{History||1.9|snap=15w44a|Spider eyes can now be found in [[desert pyramid|desert temple]] [[chest]]s.}}
{{History||1.13|snap=17w47a|Prior to [[1.13/Flattening|''The Flattening'']], this [[item]]'s numeral ID was 375.}}
{{History||1.14|snap=18w43a|[[File:Spider Eye JE2 BE2.png|32px]] The texture of spider eyes has been changed.}}
{{History|pocket alpha}}
{{History||v0.12.1|snap=build 1|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.|Spider eyes can be used to craft [[fermented spider eye]]s and for [[brewing]].}}
{{History||v0.13.0|snap=build 1|Spider eyes can now be found in [[desert pyramid|desert temple]] [[chest]]s.}}
{{History||v0.14.0|snap=build 1|Spider eyes can now dropped by [[witch]]es.}}
{{History|bedrock}}
{{History||1.10.0|snap=beta 1.10.0.3|[[File:Spider Eye JE2 BE2.png|32px]] The texture of spider eyes has been changed.}}
{{History|console}}
{{History||xbox=TU7|xbone=CU1|ps=1.0|wiiu=Patch 1|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.}}
{{History||xbox=none|xbone=none|ps=1.90|wiiu=none|[[File:Spider Eye JE2 BE2.png|32px]] The texture of spider eyes has been changed.}}
{{History|New 3DS}}
{{History||0.1.0|[[File:Spider Eye JE1 BE1.png|32px]] Added spider eyes.}}
{{History|foot}}
== Issues ==
{{issue list}}
== References ==
{{reflist}}
{{items}}
[[cs:Pavoučí oko]]
[[de:Spinnenauge]]
[[es:Ojo de araña]]
[[fr:Œil d'araignée]]
[[hu:Pókszem]]
[[it:Occhio di ragno]]
[[ja:クモの目]]
[[ko:거미 눈]]
[[nl:Spinnenoog]]
[[pl:Oko pająka]]
[[pt:Olho de aranha]]
[[ru:Паучий глаз]]
[[zh:蜘蛛眼]]
[[Category:Food]]
[[Category:Renewable resources]]
[[Category:Brewing recipe]]</li></ul> | 19w03a | Added composters. | |||
| 19w03b | All mushroom blocks can now be used in composters. | ||||
Issues
Issues relating to "Composter" are maintained on the bug tracker. Report issues there.