Nether Star Furnace processes every registered Better Smelters furnace recipe at 10× speed while using 1% of the baseline fuel per unit of work. When one cycle completes, it processes as much of the matching input stack as the output slot can accept.
TierNether StarPrimary resourceSolid fuel
Technical reference
Built to be understood
Choose a section to inspect block properties, technical capabilities, or the recipes this machine supports.
01
Block Details
Minecraft block properties, mining requirements and applicable categories.
Breaking time
1 s
Required tool
Pickaxe
MachineTechnologyFurnaces
02
Machine Specifications
Capacity, operating values, interfaces and machine-specific limits.
Production type
Item
Input
One registered smelting input and one supported solid fuel
Output
One smelted item per input, except Nether Star Furnace stack batches
Processing speed
10×
Nominal cycle
8 ticks · 0.4 s
Fuel use
1% of baseline
Coal-equivalent yield
800 items per coal-equivalent
Inventory
1 fuel slot · 1 input slot · 1 output slot
Automated fuel
Pulled from the top; fuel slot is also exposed below
Automated items
Input from the right side and output to the left side, relative to the furnace front
Special behavior
When one cycle completes, it processes as much of the matching input stack as the output slot can accept.
Fuel input
Top or bottom
Item input
Horizontal input sides; automatic pull uses the right side
Item output
All exposed output sides; automatic push uses the left side
