Compost Bin

Compost Bin
Vital statistics
Size (obj)Structure footprint in tile units.<br><br><i>Rounded-up from source.<br>Source: 0.89 x 0.89</i>	0.9 x 0.9
Skill(s) RequiredSpecific needed skills that enable a given object or item.	Carpentry, Farming, Gardening
Discovery Req.This(<i>discoveryreq</i>) is only for items that need to be discovered in addition to items listed in "Object(s) Required"/<i>(<i>objectsreq</i>).</i><small><br><b><i>(Temporary active on all pages, but leave empty if "None".</i></b><small>	(None or Unknown)
Object(s) Required	Board x6, Block of Wood x4, Bone Glue x2
Required By	(3) Earthworm, Mulch, Wood Incorrupt
Can be Lifted	Yes
Has Quality	Yes
Go to Objects

Build > Production & Processing > Compost Bin

The compost bin allows you to turn compostable materials into Mulch, which acts like soil. The compost bin has a meter indicating how much compost material it currently contains (max 2000 units of compost), as well as a 5x5 inventory grid where mulch is outputted. A fully filed compost bin can return 100 units of mulch. Earthworms can also be placed in the inventory to slightly speed up the process (20 worms, vs no worms, give a general speed of around 200%.)

Compostable Items

Related: ► Swill (for additional compostable items)

• 1 liter of swill gives 100 units of compost. (or: Compost Units == Swill(L) * 100)
  • So a Head of Lettuce which gives 0.33 swill, will give 33 compost units.
  • If needed. Mulberry Leafs are the only item that gives 1 unit of compost.

Item	Compost (U)	Note
Any edible food	(10)	Not sure if all edibles give the same amount.
Any tree or bush seed (edible)	10
Any tree or bush seed (not edible)	5
Any Crop Seeds	2
Bones	10
Cattail Fibres	5
Entrails	10
Feathers	5
Finer Plant Fibres	5
Flowers	?
Fresh Pipeweed or Cured Pipeweed	10
Hop Cones	5
Intestines	5
Wildfibres	3

Quality

• Compost Bin Quality = $\frac{{}_{q}AvgBoard{+}_{q}AvgBlock{+}_{q}AvgGlue}{3}$
• The quality of the compost bin Softcaps the quality of the produced mulch.
• The quality of any worms in the compost bin inventory plays not role.

Production & Speed

• Adding Earthworms to the compost bin inventory speeds up the production of Mulch. Roughly +5% per added worm.
  • With zero worms 1 mulch takes around 4 hours. With 20 worms this goes down to around 2 hours. (production time has some random offset.)
• When a produced mulch can't be placed in the compost bin inventory, it is discarded at which point the compost bin mulch & heat production also stops.
• Production continues again by creating an empty compost bin inventory space (even if its filled up again immediately).

Notes

• Earthworms or Wood Incorrupt(pretty rare) may occasionally spawn together with the produced Mulch.
• It takes 20 Compost/(0.20 Swill) to generate 1 mulch.
  • One bucket of swill fills half the compost bin.
  • One bucket of crop-seeds(1000) fully fills an empty compost bin.
  • Compost can't be manually taken out of a compost bin.
• (winter) An active compost bin is also a heat source. And will melt snow around it in a circle of 4.5 tiles.
• Stacking: To directly get all worms into your inventory in stacked form. Use "stack all" on the worms inside the compost bin. (The other ways of getting all worms out the compost bin don't auto-stack the worms.)

Game Development

• Market Garden (2016-10-05)◎ >"Added Compost Bin. Fill a Compost Bin with compostable materials and, after some time, retrieve Mulch instead. Mulch functions as soil."