Gleason's Gielinor Guide

EmptyClosedCompostable, 1Compostable, 2Compostable, 3Compostable, 4Compostable, 5Compostable, 6Compostable, 7Compostable, 8Compostable, 9Compostable, 10Compostable, 11Compostable, 12Compostable, 13Compostable, 14Compostable, fullCompostable, closedCompost, readyCompost, fullCompost, 14Compost, 13Compost, 12Compost, 11Compost, 10Compost, 9Compost, 8Compost, 7Compost, 6Compost, 5Compost, 4Compost, 3Compost, 2Compost, 1
Compost Bin

Released								11 July 2005 (Update)
Members								Yes
Quest								? (edit)
Location								Allotments
Options								None
Examine								Turns vegetation into compost.
Advanced data
Object ID								7808
Link								MOID

Supercompostable, 1Supercompostable, 2Supercompostable, 3Supercompostable, 4Supercompostable, 5Supercompostable, 6Supercompostable, 7Supercompostable, 8Supercompostable, 9Supercompostable, 10Supercompostable, 11Supercompostable, 12Supercompostable, 13Supercompostable, 14Supercompostable, fullSupercompostable, closedSupercompost, readySupercompost, fullSupercompost, 14Supercompost, 13Supercompost, 12Supercompost, 11Supercompost, 10Supercompost, 9Supercompost, 8Supercompost, 7Supercompost, 6Supercompost, 5Supercompost, 4Supercompost, 3Supercompost, 2Supercompost, 1
Compost Bin

Released								? (edit)
Members								Yes
Quest								? (edit)
Location								Allotments
Options								Dump
Examine								This compost bin contains supercompostable items (1/15).
Advanced data
Object ID								19066
Link								MOID

Tomato, 1Tomato, 2Tomato, 3Tomato, 4Tomato, 5Tomato, 6Tomato, 7Tomato, 8Tomato, 9Tomato, 10Tomato, 11Tomato, 12Tomato, 13Tomato, 14Tomato, 15Tomato, closedRotten tomato, readyRotten tomato, 15Rotten tomato, 14Rotten tomato, 13Rotten tomato, 12Rotten tomato, 11Rotten tomato, 10Rotten tomato, 9Rotten tomato, 8Rotten tomato, 7Rotten tomato, 6Rotten tomato, 5Rotten tomato, 4Rotten tomato, 3Rotten tomato, 2Rotten tomato, 1
Compost Bin

Released								? (edit)
Members								Yes
Quest								? (edit)
Location								Allotments
Options								Dump
Examine								This compost bin contains a tomato.
Advanced data
Object ID								19098
Link								MOID

Ultracompost, fullUltracompost, 14Ultracompost, 13Ultracompost, 12Ultracompost, 11Ultracompost, 10Ultracompost, 9Ultracompost, 8Ultracompost, 7Ultracompost, 6Ultracompost, 5Ultracompost, 4Ultracompost, 3Ultracompost, 2Ultracompost, 1
Compost Bin

Released								? (edit)
Members								Yes
Quest								? (edit)
Location								Allotments
Options								Take, Dump
Examine								This compost bin is full of ultracompost.
Advanced data
Object ID								30516
Link								MOID

A compost bin is an immovable container where weeds, crops, herbs, fruits, and other Farming produce are placed to make compost, supercompost, ultracompost, or rotten tomatoes. Compost bins are located next to allotment/flower/herb patches. Noted items cannot be added to the compost bin.

Locations

Location	Closest teleports	Map
South of Falador	Explorer's ring 2-4 Spirit tree at Port Sarim (requires 83 farming to plant) Ring of the elements (air altar) Amulet of glory (Draynor Village)
West of Port Phasmatys	Fairy ring code ALQ Ectophial teleport Fenkenstrain's Castle teleport (Arceuus spellbook) Morytania legs teleport
North of Ardougne	Ardougne cloak 2-4 Combat bracelet (Ranging Guild) Ardougne teleport Quest cape teleport Fairy ring code BLR
North of Catherby	Catherby Teleport Camelot Teleport Achievement cape teleport (Flax keeper)
South-west of Hosidius There is a non-functional* compost bin north of Tithe Farm which can cause confusion. Its examine text reads "It's full of compost."*	Xeric's talisman glade teleport Construction cape / Max cape teleport Tithe Farm Minigame teleport Spirit tree at Hosidius (requires 83 farming to plant) Fairy ring code AKR
Farming Guild beginners wing This is a Big Compost Bin, which can hold double the amount of compostable items, and thus double the amount of compost.	Skills necklace Farming cape / Max cape Spirit tree at Farming Guild (requires 83 farming to plant) Fairy ring code CIR
North-east Prifddinas	Spirit tree Teleport crystal / Eternal teleport crystal Construction cape / Max cape teleport
West of Civitas illa Fortis	Civitas illa Fortis Teleport Quetzal Whistle (Hunter Guild) Hunter cape / Max cape Fairy ring code AJP

Mechanics

Filling

A regular compost bin must be filled with 15 un-noted items before it can be closed to begin the rotting process. The big compost bin in the Farming Guild requires 30 items instead. Items cannot be retrieved from the bin once deposited, though the contents can be dumped out to discard them. Once closed, the bin cannot be opened until the rotting finishes after 35 to 70 minutes.

What the compost bin produces depends on the items that were used:

Rotten tomatoes if the bin was entirely filled with tomatoes.
Supercompost if the bin was entirely filled with supercompostable items.
Regular compost if neither of the above apply.

Most harvested products of Farming can be added to a compost bin. In general, a product is supercompostable if and only if growing it requires 47 Farming or higher, but several exceptions apply:

Potato cactus and cotton boll require greater than 47 Farming, but produce normal compost.
Toadflax and some tree roots do not require 47 Farming, but are supercompostable.
White tree fruit does not require 47 Farming, but requires completion of Garden of Tranquillity and is supercompostable.
Cactus spines, nightshade, and all kinds of tree logs cannot be composted.

Items which are derived from products of Farming may or may not be compostable. For instance, watermelon slices are compostable, but pineapple rings are not. Any item may be used on a farmer to check whether the item will make compost or supercompost. If the item does not make compost at all, the message Nothing interesting happens. is displayed instead.

Compostable and supercompostable items
Category	Compostable	Supercompostable
Allotments	Potato Onion Cabbage Tomato^{[a 1]} Sweetcorn Strawberry Watermelon slice	Watermelon Snape grass
Flowers	Marigolds^{[a 2]} Rosemary^{[a 2]} Nasturtiums^{[a 2]} Woad leaf^{[a 2]} Limpwurt root	White lily^{[a 2]}
Herbs	Guam leaf Marrentill Tarromin Harralander Ranarr weed Irit leaf	Toadflax Avantoe Kwuarm Snapdragon Cadantine Lantadyme Dwarf weed Torstol
Hops	Barley Hammerstone hops Asgarnian hops Jute fibre Yanillian hops Krandorian hops Wildblood hops Cotton boll
Bushes	Redberries Cadava berries Dwellberries	Jangerberries White berries Poison ivy berries
Fruits	Cooking apple Banana Orange Curry leaf	Pineapple Papaya fruit Coconut^{[a 3]} Half coconut^{[a 3]} Coconut shell^{[a 2]} Dragonfruit
Other	Weeds Kebab Potato cactus Seaweed Giant seaweed	Any tree roots Mushroom Calquat fruit White tree fruit
^ If a compost bin is filled entirely with tomatoes, it produces rotten tomatoes instead of compost. ^ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 This item has little use outside of being composted. ^ ^3.0 ^3.1 Because coconut shells are also supercompostable, using this forfeits the coconut milk for no gain.

Because every item added must be supercompostable for the bin to produce supercompost, a warning dialogue appears if the player attempts to mix compostable and supercompostable items.

On normal worlds, compost bins can be filled while simultaneously harvesting a nearby allotment. Stand close to the bin and the nearest allotment patch, harvest a single crop, then click the allotment and use the crop already in your inventory on the bin in the same game tick. This does not work on PvP worlds or Deadman Mode worlds.

Upgrading

Once a compost bin containing any kind of compost has been opened, the compost may be upgraded before withdrawing it:

Regular compost may be upgraded to supercompost by adding one dose of compost potion (even for the big compost bin).
Supercompost may be upgraded to ultracompost by adding volcanic ash - 25 for a regular bin, and 50 for the big compost bin.

It is possible to upgrade the withdrawn buckets as well, but this is less efficient: one dose of compost potion is used per bucket instead of one dose for the entire bin of 15 (or 30) buckets, and 2 volcanic ash is used per bucket for a total of 30 (or 60) volcanic ash instead of 25 (or 50) for the entire bin.

Emptying

Clicking the compost bin again after opening begins emptying it. If the bin contains any kind of compost, the player must have in their inventory empty buckets or a bottomless compost bucket that either contains the same kind of compost or is empty. If the player has both regular buckets and a bottomless bucket, the regular buckets are filled first.

Products

	Facility	Skills	XP	Materials
15 × Compost (Compost bin)	Compost Bin	1	4.5	15 × Weeds 15 × Bucket
15 × Rotten tomato (Compost bin)	Compost Bin	1	4.5	15 × Tomato
15 × Supercompost (Compost bin)	Compost Bin	1	8.5	15 × Watermelon 15 × Bucket
15 × Supercompost (Compost potion (bin))	Compost Bin	1	8.5	15 × Weeds 1 × Compost potion(1) 15 × Bucket
15 × Ultracompost (Compost bin)	Compost Bin	1	10	15 × Watermelon 25 × Volcanic ash 15 × Bucket
15 × Ultracompost (Compost potion)	Compost Bin	1	10	15 × Weeds 1 × Compost potion(1) 25 × Volcanic ash 15 × Bucket

Transcript

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Changes

Date	Changes
3 December 2025 (Update)	With the exception of PvP and Deadman worlds, players who start to harvest an allotment and in the same tick use the same produce on a compost bin, will once again continue harvesting and composting automatically until the patch empties or the compost bin fills.
12 August 2020 (Update)	Composting snape grass will now get you supercompost instead of regular compost.
28 May 2015 (Update)	When examining compost bins, depending on whether the contents of the compost bin is rotting, has finished rotting, items are being put in or items are being taken out, the examine message will change to describe the state of the bin and what is inside it.
1 May 2014 (Update)	Adding items into a compost bin has been sped up.
23 May 2013 (Update \| poll)	If you put something into a compost bin, you will now automatically continue putting those items into the bin until you run out or the bin becomes full.