Smelting

Smelting (or Melting, Baking, Cooking, Burning) is the way you smelt or heat items in Minecraft. The furnace, when right-clicked, has its own menu where heating operations can be done. It consists of one field for the object that will be heated, one field for the fuel and one field for the output object. Each heating operation takes 9.25 seconds. Smelting will work when the smelting menu is closed, as long as there are still objects to heat and there is enough fuel. The fire icon diminishes to represent the fuel burn time. When the fire icon diminishes fully, another fuel item is consumed and the flames are replenished. If all objects are heated, the furnace will stop using additional fuel. If there is no fuel left, the furnace will become inactive. If a heating process was running, it will be cancelled and must be redone.

[edit] Food

Name	Ingredients	Input » Output	Description
Cooked Porkchop	Raw Porkchop + Fuel		Fills , while raw only fills .
Steak	Raw Beef + Fuel		Fills , while raw only fills .
Cooked Chicken	Raw Chicken + Fuel		Fills , while raw only fills .
Cooked Fish	Raw Fish + Fuel		Fills , while raw only fills .

[edit] Ores and materials

Name	Ingredients	Input » Output	Description
Iron Ingot	Iron Ore + Fuel		Used to craft various items, including iron swords, iron picks (or pickaxes), and iron blocks.
Gold Ingot	Gold Ore + Fuel		Used to craft various items. See gold ore.
Diamond	Diamond Ore + Fuel		Used to craft various items. One may only get Diamond ore through the Silk Touch enchantment.
Lapis Lazuli	Lapis Lazuli Ore + Fuel		Used as a dye, and to craft a Lapis Lazuli Block. One may only get Lapis Lazuli ore through the Silk Touch enchantment.
Redstone Dust	Redstone Ore + Fuel		Used to create electric circuits. One may only get Redstone ore through the Silk Touch enchantment.
Coal	Coal Ore + Fuel		Used as a fuel and as lighting. One may only obtain coal ore through the Silk Touch enchantment.
Glass	Sand + Fuel		Used to make transparent structures, like windows. Also used to craft Glass Panes and Glass Bottles.
Stone	Cobblestone + Fuel		Used as a building material, and is also used for crafting Stone Brick blocks and Redstone Repeaters.
Clay Brick	Clay + Fuel		Used to make Brick (Block).

[edit] Misc

Name	Ingredients	Input » Output	Description
Charcoal	Wood + Fuel		Used to craft Torches and as fuel in a Furnace or in a Minecart with Furnace.
Cactus Green	Cactus + Fuel		Used as a Dye.

[edit] Fuel efficiency

Each operation costs 200 units of heat.

Fuel	Heat Value	Burning Time	Number of Operations per Fuel	Amount to Light a Furnace All Night	Seconds per Wood Block (trunk)[fn 1]	Amount needed to burn a stack (64) of items
Lava Bucket	20000	1000s	100	0.54	-	0.64
Blaze Rod	2400	120s	12	4.5	-	5.33
Coal	1600	80s	8	6.75	-	8
Charcoal	1600	80s	8	6.75	up to 70s[fn 2]	8
Wooden Planks	300	15s	1.5	36	60s	43
Fence	300	15s	1.5	36	40s	43
Wooden Stairs	300	15s	1.5	36	40s	43
Trapdoor	300	15s	1.5	36	20s	43
Oak Wood	300	15s	1.5	36	15s	43
Birch Wood	300	15s	1.5	36	15s	43
Spruce Wood	300	15s	1.5	36	15s	43
Crafting Table	300	15s	1.5	36	15s	43
Bookshelf	300	15s	1.5	36	10s	43
Chest	300	15s	1.5	36	7.5s	43
Jukebox	300	15s	1.5	36	7.5s	43
Note Block	300	15s	1.5	36	7.5s	43
Locked Chest	300	15s	1.5	36	-	43
Oak Sapling	100	5s	0.5	108	-	128
Birch Sapling	100	5s	0.5	108	-	128
Spruce Sapling	100	5s	0.5	108	-	128
Stick	100	5s	0.5	108	40s	128

1. ↑ This column is the unit-of-wood-equivalent. Calculation made once the fuel item is converted back to wood.
2. ↑ The fuel cost of turning a wood block into charcoal (1/8 of a second charcoal item) is already deducted from this amount.

[edit] History

Before the furnace appeared, smelting was accomplished by creating a fire and dropping the ore into it. During the Indev versions of Minecraft you started with a bunch of TNT and flint and steel which allowed you to smelt any ores before furnace was released.

[edit] Trivia

• It takes 10 minutes and 40 seconds to smelt a stack of 64 items
• If you sleep in a bed while a furnace is smelting, the furnace will smelt as if no time has passed. The reason for this is because when you sleep in a bed, no time actually goes by, but instead the game sets the time of day to morning.
• Burning Wood with Wooden Planks to make Charcoal is over 5 times more efficient than using the wood itself as fuel. It is just over 1 ¹⁄₄ times more efficient than using planks.
• Note that when using a bucket of lava, the bucket vanishes when used. Jeb tweeted a while back that he would like to change this so it does not vanish. ^{[citation needed]}
• Jeb has stated he likes the idea of smelting Gravel to create "Stone Chunks", which could be crafted into Stone Bricks in a 2x2 grid.^[1]

[edit] See also

• Smelting on Wikipedia
• Brewing
• Crafting
• Enchanting

[edit] References

1. ↑ http://twitter.com/jeb_/status/144164303224836096