Definition
“Slag burner” is community shorthand for the heat stage.
The captured Steam discussion says lava can be placed inside a filter so slag passing over it cooks automatically; a developer reply calls it an autoburner setup. Treat this as Community behavior for that build, not an official blueprint.
Use sequence
Keep burning and pressing as two separate stages.
The captured publisher wiki entry says the Kinetic Slag Press turns 1 Burnt Slag into 1 Gold and 1 Spore. That numeric recipe comes from an inferred wiki entry, not an official first-hand test; confirm it in the current Early Access build.
Inferred numeric claim + Community heat-stage pattern · current-build verification required.
Layout guidance
Separate the hot zone, recirculation check, and press feed.
- Contain lava inside the filter area described by the discussion.
- Let slag pass over the hot zone rather than mixing lava into the main feed.
- Keep a route for burnt slag to leave toward the press.
- The discussion suggests recirculating uncooked slag that slips through; test that failsafe with a small batch.

Scope
No first-hand recipe or ratio claim.
The lava-and-filter behavior and recirculation suggestion come from one captured Steam discussion. The press role comes from the captured publisher wiki entry. Reproduce both in the current build before relying on the layout.
FAQ
Questions this page can answer
Is slag burner an official machine name here?
This page uses it as community shorthand for the heat stage.
Are exact outputs verified?
The 1 Gold plus 1 Spore output comes from an inferred wiki entry, not an official first-hand test; recheck it in the current build.
Sources
Sources and scope
Official sources are confirmed facts from the developer, publisher, or store pages. Inferred and community sources can help you test an idea but are not confirmed official facts.
- OfficialSteamOpen source ↗
Supports the official Sandustry identity and automation premise.
- InferredHooded Horse Kinetic Slag Press entryOpen source ↗
Supports the Inferred Kinetic Slag Press role and the captured snippet's 1 Burnt Slag to 1 Gold plus 1 Spore output.
- CommunitySteam discussion: slag furnaceOpen source ↗
Supports the Community lava-and-filter setup discussion.
Next task
Learn about Crackstone
Continue through the field manual with the limits of each source in mind.