Smelting is a method of producing refined goods. It has the same idea as crafting: a player supplies acceptable ingredients, and receives a corresponding output. However, smelting utilizes furnaces, blast furnaces, or smokers, which have a unique interface: one input field for the object to be heated, a secondary input field for the fuel, and one output field for the final smelted product.

For example, two saplings (fuel) could be used to smelt one wood (input) into one charcoal (output). Raw food items can also be cooked using a campfire (without giving experience), while smokers and blast furnaces can smelt certain types of items twice as fast as usual at the cost of being unable to smelt any other items.

Usage and mechanics [ edit ]





The smelting interface.

To smelt with a furnace, an input material and a fuel must be placed into the top-left and bottom-left slots of it, respectively. The furnace begins to smelt on its own and continues to work if the menu is closed and the player leaves. The player can tell whether a furnace is working or not by seeing if the furnace is lit and the fire particle effects are appearing or not. When the furnace begins to smelt, it consumes one piece of fuel and the fire gauge fills. Once a piece of fuel begins burning, it cannot be stopped, unless the furnace is broken. While the piece of fuel burns, the fire gauge slowly decreases until it is gone, and the process repeats with the next piece of fuel. When all fuel is exhausted with material remaining in the input slot, the furnace stops, and the item is not smelted. If the input material is exhausted with fuel remaining, the fire gauge continues decreasing, wasting the remaining burn time left for the piece of fuel being burned, but no further fuel is burned if the input slot remains empty.

As items smelt, an arrow icon represents the smelting progress. Each smelting operation takes 10 seconds. When it completes, the smelted item is added into the output field. If the furnace runs out of fuel before the arrow is filled up, then the input is not smelted and the process rewinds at double speed.

If the player travels far enough to unload the chunk containing a smelting furnace, the smelting process pauses until the player returns. Smelting also pauses if a player leaves the dimension in which the furnace is located. If the player sleeps in a bed while a furnace is smelting items, the furnace's progress remains the same as if the bed had not been used and no additional time had passed. This is because when a player sleeps in a bed, no time actually passes; the game simply sets the time of day to morning.

If a player removes a smelted item from the output field, that player instantly receives experience for all the items smelted in that furnace, even items that had already been pulled out by a hopper.

Items can similarly be smelted in a blast furnace or smoker. The usage and interface for smelting with both blocks is the same as those of a normal furnace; however, blast furnaces can be used only to smelt ores and metal tools, and smokers can be used only to smelt food items. Both blocks smelt items twice as fast as regular furnaces do. Some items (such as logs) can be smelted only in a basic furnace.

Using a campfire [ edit ]

Items can also be smelted using a campfire. To do so, the player must use a lit campfire, with any of the food items listed in the Recipes section in their hand. Fuel is not required; the campfire is able to cook items infinitely on its own. Smelting an item takes 30 seconds, three times the amount of time it would take if a furnace were used instead. A campfire can hold up to four items at the same time. Once the campfire has finished cooking an item, it emerges from the campfire as an item entity. No experience points are granted.

Recipes [ edit ]

Food [ edit ]

Processing ores and materials [ edit ]

Gem ores [ edit ]

The following ores can be smelted, but in these cases this is not necessary to obtain the product. All of these ores yield their product freely when mined with an appropriate pickaxe, and give far more experience than when smelted (with the exception of nether gold ore, gives both more gold and more experience when smelted). The ore blocks themselves can be obtained only via the Silk Touch enchantment. Also, some of these ores may drop multiple items when mined normally, and all of them potentially drop even more when mined with a Fortune-enchanted pickaxe. Smelting these, however, always gives only a single unit of the product.

A note about fractional experience values: For fractional values, first multiply this value by the number of smelted items removed from the furnace, then award the player the whole-number part, and if there is a fractional part remaining, this represents the chance of an additional experience point.

For example, when smelting 1 coal ore and removing the coal, the value is 0.1, so this grants a 10% chance of getting 1 experience point.

Or, when smelting 5 sea pickles and removing all 5 lime dye, the value is 0.2 × 5 = 1, so this grants only 1 point.

Fuel [ edit ]

There are multiple fuels that can be used to smelt items. The type of fuel that should be used depends on the number of items in question.

For larger jobs, a single lava bucket or a block of coal can burn more items than can fit in the furnace—both input and output are limited to a stack of 64, but a block of coal burns 80 items, and lava can burn 100 items.

Items that can be used as fuel in furnaces [ edit ]

↑ All times given are for fuel burned in a furnace . When burned in a blast furnace or smoker , fuel is burned twice as fast but produces the same number of items. ↑ Items in red are not stackable, items in yellow only stack up to 16. ↑ Calculated as the burning time divided by the number of logs used to make one fuel. Items in red are not made entirely of wood. ↑ When using planks to smelt logs to charcoal. a b c d e f g h i j k l m n Nether wood variants do not burn in a furnace.

Hopper automation [ edit ]

Automated furnace

The smelting process can be automated with hoppers on the top and bottom of the furnace. For larger smelting jobs, a third hopper on the side of the furnace can feed in fuel and, in case of lava being used as fuel, any empty buckets come out of the bottom hopper. This automatically feeds and empties the furnace so that different materials can be smelted in the same batch with no loss.

Any experience from items smelted is saved even if the furnace is completely emptied by a hopper. If one cooked/smelted product item is later taken out of the furnace, the player receives experience for any items that were smelted.

Achievements [ edit ]

Icon Achievement In-game description Actual requirements (if different) Gamerscore earned Trophy type (PS) Acquire Hardware Smelt iron ore in the furnace. Pick up an iron ingot from a furnace output. 15G Bronze Delicious Fish Catch and cook a fish! Pick up a cooked cod from a furnace output. Doesn't work if the furnace is hooked up to a hopper, as the player is not getting the item directly from the furnace. 15G Silver Pork Chop Cook and eat a pork chop. — 10G Bronze Renewable Energy Smelt wood trunks using charcoal to make more charcoal. Smelt a wooden log with charcoal as the fuel. 10G Bronze Rabbit Season Cook and Eat Rabbit Meat — 15G Bronze Dry Spell Dry a sponge in a furnace — 15G Bronze Super Fuel Power a Furnace with Lava — 20G Bronze

Advancements [ edit ]

Icon Advancement In-game description Parent Actual requirements (if different) Namespaced ID Acquire Hardware

Smelt an iron ingot Getting an Upgrade Have an iron ingot in your inventory. story/smelt_iron

Video [ edit ]

Note: this video is outdated, as it doesn't talk about blast furnaces, smokers or campfires, because this video was recorded before 1.14.

History [ edit ]

Trivia [ edit ]

It takes 10 minutes and 40 seconds to smelt a stack of 64 items in a single furnace, although this time can be reduced by splitting the load between multiple furnaces or by smelting the items in a blast furnace or smoker.

Burning logs or wood with planks to make charcoal is over 4 times (×4.57) more efficient than using the log or wood itself as fuel. It is just over 1 1 ⁄ 4 times more efficient than using planks.

⁄ times more efficient than using planks. The most efficient fuel to make charcoal is charcoal itself.

The most efficient wood-only fuel in Bedrock edition is wooden slabs. Each log equals out to 8 wooden slabs (3 logs produce 12 planks that produce 24 slabs) that provide fuel for 12 items. Turning a log into charcoal provides only enough fuel for 8 items plus the loss of fuel needed to smelt the logs.

Turning coal into blocks of coal is slightly more efficient (×1.11) than using the coal itself as fuel. Nine coal smelts 80 items instead of the usual 72.

If the player wants to use wooden tools as fuel, the most efficient way is to use it until its durability reaches 1, then use it as a fuel afterward.

Melting down used iron – or golden – tools and armor for nuggets and crafting the same tool out of them afterward is a more efficient strategy in the case of shovels, swords and hoes (the latter two just barely). Otherwise, the player can get far more durability for their iron by combining the items in the crafting grid or a grindstone.

"Smelting" is a broad term in the context of Minecraft while in the real world, smelting has a more precise definition.[2]

See also [ edit ]