Iron-farm designs depend heavily on Java versus Bedrock villager and spawn rules; a design from one edition may fail in the other.
Quick answer
Check the edition, version, station, and exact ingredients. Custom data packs or experimental settings can change a recipe.
What to do
Work through these checks in order. Stop if a menu, command, or world state differs from the conditions described.
- Confirm your Minecraft edition and release, then identify the world, device, or server involved.
- Choose a design verified for your exact edition and version.
- Build in a test world and check villager, bed, workstation, and spawn conditions before scaling up.
- Check the result in the game. If it differs, record the exact error or menu label and compare the official source for your version.
Edition and version differences
Java, Bedrock, older releases, and custom data packs can have different recipes. The in-game recipe book is the final check.
If the result differs
Compare the current screen or error text with the conditions above. Check the edition, version, station, and exact ingredients. Custom data packs or experimental settings can change a recipe. Change one variable at a time so you can tell which step made a difference.
Official sources and version scope
Examples are based on the original BlockGuide research snapshot dated 2026-10-12. Check the current edition and release before changing a live world.