Compost Bin

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This article is about regular compost bins. For the big compost bin found in the Farming Guild, see Big Compost Bin.

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

Locations[edit | edit source]

Mechanics[edit | edit source]

Players need 15 items to fill the compost bin (or 30 if filling the big compost bin in the farming guild), which they can then close to start the rotting process.

Players must use 15 supercompost-compatible items in the compost bin to make supercompost - even one incompatible item will make the whole contents into regular compost. This is the same when making rotten tomatoes. A message will pop up warning the player if they attempt to add something that would impurify their compost bin. Alternatively, players can use one dose of compost potion on a bin containing normal compost to change the entire bin into supercompost.

25 (or 50) volcanic ash can be used on a full compost bin containing supercompost in order to upgrade it to ultracompost.

It is advisable to make entire bins into higher tiers of compost, as using it on buckets costs more in total — one compost potion turns one bucket of compost into supercompost, or one bin of 15 compost into 15 supercompost, and 30 volcanic ash turns 15 buckets of supercompost into ultracompost (2 ash per bucket), or 25 ash turns one bin of 15 supercompost into 15 ultracompost, saving 5 ash.

Compost takes about 35 to 50 minutes to decompose inside the bin. Once it is finished, players can open the bin and collect the resulting 15 (or 30) compost using buckets. Empty buckets in the player's inventory will be filled first, followed by their Bottomless compost bucket.

Products of rotting[edit | edit source]

Suitable items for supercompost[edit | edit source]

Players may use an item on a farmer to check whether the item will make compost or supercompost. The following items will always make supercompost.

Update history[edit | edit source]

Date Changes
12 August 2020

Composting snape grass will now get you supercompost instead of the regular stuff.

28 May 2015

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

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.

22 February 2013

This content was included when the Old School RuneScape servers officially launched.