Reviewed OSRS method
Making ultracompost in OSRS
Live GE profit, requirements, items, steps and risks for making ultracompost in OSRS, using reviewed OSRS Wiki source facts.
Live GE checkLoading current margin…Inputs use instant-buy; outputs use instant-sell after tax.
Skill requirementsNo skill requirement
Reviewed pace2,700 actions/hr
Source checkedSep 1, 2026
Next reviewOct 1, 2026
Inputs and outputs
What You Need for Making ultracompost
Bring
Supercompost1 per action
Volcanic ash2 per action
Receive
Ultracompost1 per action
Reviewed loop
How to Run the Method
- 01
Withdraw 27 supercompost and a stack of volcanic ash.
- 02
Use the ash on the supercompost and process the full inventory.
- 03
Bank the ultracompost, restock, and repeat.
Expected cadence
About 36 seconds per 27-item inventory. The published 2,700 actions/hr is a comparison assumption, not a guarantee.
Before committing GP
Requirements and Risks
No additional quest, access, item or setup requirement is recorded in the current reviewed entry. Confirm the Wiki guide before committing a large cash stack.
- Ultracompost prices can diverge sharply from the guide price.
- Large sessions require substantial quantities of both ingredients.
- Grand Exchange buy limits, slow fills, price movement, travel and mistakes can reduce actual GP/hr.