A blast furnace is a block that smelts ores and metal armor and tools, similar to a furnace, but at twice the rate and half the experience. It also serves as an armorer's job site block.
Obtaining
Breaking
A blast furnace can be picked up by any pickaxe. If mined without a pickaxe, it does not drop anything.
Blast furnaces drop their contents when broken.
| Block | Blast Furnace | |
|---|---|---|
| Hardness | 3.5 | |
| Tool | ||
| Breaking time[A] | ||
| Default | 17.5 | |
| Wooden | 2.65 | |
| Stone | 1.35 | |
| Iron | 0.9 | |
| Diamond | 0.7 | |
| Netherite | 0.6 | |
| Golden | 0.45 | |
- ↑ Times are for unenchanted tools as wielded by players with no status effects, measured in seconds. For more information, see Breaking § Speed.
Natural generation
Blast furnaces can generate in all villages variant armorer houses.
Crafting
| Ingredients | Crafting recipe |
|---|---|
| Iron Ingot + Furnace + Smooth Stone |
Usage
Blast furnaces cannot be pushed by pistons.[Java Edition only]
Smelting
Blast furnaces are similar to furnaces, but can smelt only ore blocks and tools/armor made of iron, gold or chainmail. Blast furnaces also serve as the counterpart to smokers, which are used mainly to cook food faster. Smelting equipment yields one iron or gold nugget from their respective materials. Once an item and a fuel are placed into the blast furnace, the block state changes to lit and the item is smelted twice as fast as a regular furnace. Fuel is also used at double the rate of regular furnaces, so the number of items smelted per fuel stays the same. However, experience earned from blast furnaces is half the amount earned from regular furnaces.[Java Edition only] The product can then be collected by using the output. Like normal furnaces, a hopper can be fed into a blast furnace and can also pick up items from it.
Light source
Blast furnaces emit a light level of 13 when active, similar to normal furnaces.
Custom name
By default, the GUI of a furnace is labeled "Blast Furnace", but this name can be customized by naming it in an anvil before placing it, or by changing the CustomName tag using the /data command.[Java Edition only]
Change profession
If a village has a blast furnace that has not been claimed by a villager, any nearby villager who hasn't chosen a job site block has a chance to change their profession to armorer.
Lock
In Java Edition, a blast furnace can be "locked" by setting its Lock tag using the /data command. If a blast furnace's Lock tag is not blank, the blast furnace cannot be opened unless the player is holding an item with the same name as the Lock tag's text. For example, to lock a blast furnace at (0,64,0) so that the blast furnace cannot be opened unless the player is holding an item named "Blast Furnace Key", use /data merge block 0 64 0 {Lock:"Blast Furnace Key"}.
Sounds
| Sound | Subtitles | Source | Description | Resource location | Translation key | Volume | Pitch | Attenuation distance |
|---|---|---|---|---|---|---|---|---|
| Block broken | Blocks | Breaking the block | block | subtitles | 1.0 | 0.8 | 16 | |
| None[[#cite_note-bug''None'''"`UNIQ--ref-00000004-QINU`"'-3|[sound 2]]] | Blocks | Falling on the block with fall damage | block | None[[#cite_note-bug''None'''"`UNIQ--ref-00000004-QINU`"'-3|[sound 2]]] | 0.5 | 0.75 | 16 | |
| Block breaking | Blocks | Mining the block | block | subtitles | 0.25 | 0.5 | 16 | |
| Block placed | Blocks | Placing the block | block | subtitles | 1.0 | 0.8 | 16 | |
| Footsteps | Blocks | Walking on the block | block | subtitles | 0.15 | 1.0 | 16 | |
| Blast furnace crackles | ? | Plays randomly when active | block | subtitles | 1 | ? | 16 |
Data values
ID
| Name | Identifier | Translation key |
|---|---|---|
| Blast Furnace | blast_furnace | block.minecraft.blast_furnace |
| Name | Identifier |
|---|---|
| Block entity | blast_furnace |
| Name | Identifier | Numeric ID | Translation key |
|---|---|---|---|
| Unlit block | blast_furnace | 451 | tile.blast_furnace.name |
| Lit block | lit_blast_furnace | 469 | tile.lit_blast_furnace.name |
| Name | Savegame ID |
|---|---|
| Block entity | ? |
Block states
| Name | Default value | Allowed values | Description |
|---|---|---|---|
| facing | north | eastnorthsouthwest | The direction the blast furnace's opening faces. The opposite from the direction the player faces while placing the blast furnace. |
| lit | false | falsetrue | If the blast furnace is lit. |
| Name | Metadata Bits | Default value | Allowed values | Values for Metadata Bits |
Description |
|---|---|---|---|---|---|
| facing_direction (Deprecated) | 0x10x20x4 | 3 | 2345 | 2345 | The direction the blast furnace's opening faces.
|
01 | 01 | Unused | |||
| minecraft:cardinal_direction | Not Supported | south | eastnorthsouthwest | Unsupported | The direction the blast furnace's opening faces. The opposite from the direction the player faces while placing the blast furnace. |
Block entity
A blast furnace has a block entity associated with it that holds additional data about the block.
- Block entity data
- Tags common to all block entities
- BurnTime: Number of ticks left before the current fuel runs out.
- CookTime: Number of ticks the item has been smelting for. The item finishes smelting when this value reaches 200 (10 seconds). Is reset to 0 if BurnTime reaches 0.
- CookTimeTotal: Number of ticks It takes for the item to be smelted.
- CustomName: Optional. The name of this container in JSON text component, which appears in its GUI where the default name ordinarily appears.
- Items: List of items in this container.
- : An item in the blast furnace, including the slot tag:
Slot 0: The item(s) being smelted.
Slot 1: The item(s) to use as the next fuel source.
Slot 2: The item(s) in the result slot.- Tags common to all items
- : An item in the blast furnace, including the slot tag:
- Lock: Optional. When not blank, prevents the container from being opened unless the opener is holding an item whose name matches this string.
- RecipesUsed: Recipes that have been used since the last time a recipe result item was manually removed from the GUI. Used to calculate experience given to the player when taking out the resulting item.
- recipe ID: How many times this specific recipe has been used. The recipe ID is the identifier of the smelting recipe, as a resource location, as used in the
/recipecommand.
- recipe ID: How many times this specific recipe has been used. The recipe ID is the identifier of the smelting recipe, as a resource location, as used in the
History
| Java Edition | |||||
|---|---|---|---|---|---|
| 1.14 | 18w44a | ||||
| Blast furnaces are currently obtainable only through the creative inventory and the GUI can be accessed only through spectator mode. | |||||
| 18w48a | Blast furnaces can now generate in plains village houses. | ||||
| 18w50a | Blast furnaces are now functional and craftable. | ||||
| 19w03a | Sounds have been added for blast furnaces. | ||||
| 1.16 | 20w06a | Added ancient debris, which can be smelted in blast furnaces. | |||
| Bedrock Edition | |||||
| 1.9.0 | beta 1.9.0.2 | ||||
| 1.10.0 | beta 1.10.0.3 | A crafting recipe has been added for the blast furnace. | |||
| Blast furnaces now generate in the new village armorer houses. | |||||
| 1.11.0 | beta 1.11.0.1 | Blast furnace functionality has been added. | |||
| PlayStation 4 Edition | |||||
| 1.91 | |||||
Issues
Issues relating to "Blast Furnace" are maintained on the bug tracker. Report issues there.