Blast Furnace

Blast Furnace

Type	Solid Block, Tile Entity
Requirements	None
Physics	No
Transparency	Partial (when active)
Luminance	13 (when active)
Blast resistance	?
Hardness	3.5
Tool
Renewable	Yes
Stackable	Yes (64)
Flammable	No
Drops	Blast Furnace (1) plus contents
Block Entity ID	§ Data values
Namespaced ID	§ Data values

A blast furnace is used to smelt ores and smeltable armor and tools, similar to a furnace, and is also an armorer's job site block.

Obtaining

A blast furnace can be picked up by any pickaxe. If mined without a pickaxe, it does not drop anything.

Block	Blast Furnace
Hardness	3.5
Tool
Breaking time
Hand	17.5
Wooden	2.65
Stone	1.35
Iron	0.9
Diamond	0.7
Golden	0.45

Natural generation

Blast furnaces can generate in all village variant armorer houses.

Crafting

Ingredients	Crafting recipe
Iron Ingot + Furnace + Smooth Stone

Usage

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

Blasting

Main article: Smelting

Blast furnaces are similar to furnaces but can smelt only ore blocks. When smelting, once an item and a fuel are placed into the blast furnace, the block state changes to lit and the item smelts twice as fast as a regular furnace. Fuel is also used at double the rate of regular furnaces, so that the number of items cooked per fuel stays the same. The product can then be collected by pressing use on the blast furnace. 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.

Blast resistance

Blast furnaces have a blast resistance of 17.5, the same as 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.

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"}.

Data values

ID

Java Edition:

Furnace	Namespaced ID
Block	blast_furnace
Block entity

Bedrock Edition:

Furnace	Namespaced ID	Numeric ID
Unlit block	blast_furnace	451
Lit block	lit_blast_furnace	469
Block entity	BlastFurnace	-

Block states

See also: Block states

Java Edition:

Name	Default value	Allowed values	Description
facing	north	east north south west	The direction the blast furnace 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.

Block entity

See also: Block entity format

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 display 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

Java Edition
1.14		18w44a			Added blast furnaces. They 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			Added sounds for blast furnaces.
Bedrock Edition
1.9.0		beta 1.9.0.2			Added blast furnaces.
1.10.0		beta 1.10.0.3			Added crafting recipe for the blast furnace.
					Blast furnaces now generate in new village armorer houses.
1.11.0		beta 1.11.0.1			Added blast furnace functionality.
PlayStation 4 Edition
1.91					Added blast furnaces.

Issues

Issues relating to "Blast Furnace" are maintained on the bug tracker. Report issues there.

See also

• Furnace
• Smoker

Blocks

View at: Template:Blocks/content [edit]