Blast Furnace

Renewable	Yes
Stackable	Yes (64)
Tool
Blast resistance	3.5
Hardness	3.5
Luminant	Yes (13) (when active)
Transparent	Partial (when active)
Flammable	No
Catches fire from lava	No

A blast furnace is a block that smelts ores and metal armor and tools, similar to a furnace, but at twice the rate. It also serves as an armorer's job site block.

Obtaining[edit]

Breaking[edit]

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[edit]

Blast furnaces can generate in all villages variant armorer houses.

Crafting[edit]

Ingredients	Crafting recipe
Iron Ingot + Furnace + Smooth Stone

Usage[edit]

Blast furnaces cannot be pushed by pistons.‌^{[Java Edition only]}

Smelting[edit]

Blast furnaces are similar to furnaces, but can smelt only ore blocks and tools/armor made of iron, gold or chainmail. Blast furnaces 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. 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[edit]

Blast furnaces emit a light level of 13 when active, similar to normal furnaces.

Custom name[edit]

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[edit]

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[edit]

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"}.

Note Blocks[edit]

Blast furnace can be placed under note blocks to produce "bass drum" sound.

Sounds[edit]

Java Edition:

Subtitle	Source	Description	Namespaced ID	Translation key	Volume	Pitch	Attenuation distance
Block broken	Blocks	Breaking the block	`block.stone.break`	`subtitles.block.generic.break`	1.0	0.8	16
None^{[sound 1]}	Blocks	Falling on the block with fall damage	`block.stone.fall`	None^{[sound 1]}	0.5	0.75	16
Block breaking	Blocks	Mining the block	`block.stone.hit`	`subtitles.block.generic.hit`	0.25	0.5	16
Block placed	Blocks	Placing the block	`block.stone.place`	`subtitles.block.generic.place`	1.0	0.8	16
Footsteps	Blocks	Walking on the block	`block.stone.step`	`subtitles.block.generic.footsteps`	0.15	1.0	16
Blast furnace crackles	?	Plays randomly when active	`block.blastfurnace.fire_crackle^[1]`	`subtitles.block.blastfurnace.fire_crackle`	1	?	16

↑ ^a ^b MC-177082

Data values[edit]

ID[edit]

Java Edition:

Name	Namespaced ID	Translation key
Blast Furnace	`blast_furnace`	`block.minecraft.blast_furnace`

Name	Namespaced ID
Block entity	`blast_furnace`

Bedrock Edition:

Name	Namespaced ID	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	`BlastFurnace`

Block states[edit]

Java Edition:

Name	Default value	Allowed values	Description
facing	`north`	`east` `north` `south` `west`	The direction the blast furnace's opening faces. The opposite from the direction the player faces while placing the blast furnace.
lit	`false`	`false` `true`	If the blast furnace is lit.

Bedrock Edition:

Name	Default value	Allowed values	Description
facing_direction	`2`	`0` `1` `2` `3` `4` `5`	The direction the blast furnace's opening face. Opposite from the direction the player faces when placing a blast furnace.

Block data[edit]

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 see Template:Nbt inherit/blockentity/template
- CustomName: Optional. The name of this container in JSON text component, which appears in its GUI where the default name ordinarily appears.
- Lock: Optional. When not blank, prevents the container from being opened unless the opener is holding an item whose name matches this string.
- Items: List of items in the 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 see Template:Nbt inherit/item/template
- 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.
- RecipeLocationN: N is the number of the recipe, starting at 0. The recipe name that has been used, used to calculate experience given to the player when taking out the resulting item.
- RecipeAmountN: N is the number of the recipe, starting at 0. How many times recipe N has been used, used to calculate experience given to the player when taking out the resulting item.
- RecipeUsedSize: How many recipes have been used, creates corresponding RecipeLocationN and RecipeAmountN tags, used to calculate experience given to the player when taking out the resulting item.

History[edit]

Java Edition
1.14	18w44a	Added blast furnaces.
	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	Added blast furnaces.
1.10.0	beta 1.10.0.3	A crafting recipe has been added for the blast furnace.
1.10.0	beta 1.10.0.3	Blast furnaces now generate in the new village armorer houses.
1.11.0	beta 1.11.0.1	Blast furnace are now functional.
Legacy Console Edition
	1.91	Added blast furnaces.