Games/Minetest Game/Smelting

Smelting—also called Cooking—is the act of producing refined goods in Minetest Game with a specal block (like a furnace or similar).

Smelting basics

In Minetest Game, smelting is considered to be a form of crafting.

For smelting or cooking, you need:

• Any fuel item
• An item which can be smelted/cooked
• Some mechanism to start smelting (like a furnace)

Fuels are always required in order to produce a flame. Coal and wooden items are commonly used as fuels. Any fuel can be used to smelt anything as long it is burning long enough. Each fuel has its own duration. Fuels are usually used up when the smelting process starts, but for some special items they might be replaced with different item.

Smeltable items are determined by smelting recipes. A smeltable item needs to be provided with the fuel's flame for a certain amount of time (the exact time depends on the item) to be smelted into a different item.

Example

Iron lumps in Minetest Game can be smelted in 3 seconds. This means, to smelt an iron lump, you need a total amount of fuel lasting for 3 seconds or more. Many items burn long enough. You could use a coal lump (which would be wasteful) or wooden planks (which is less wasteful) or pretty much any other fuel item. If a single fuel item does not burn enough, you have to stack it (but there's a short delay before the next fuel is used). Thus, you can even use 3 leaves.

Furnace

In Minetest Game, the furnace is used for all smelting operations. Refer to the Furnace page to learn how it works. This section contains the available smelting recipes and fuels in Minetest Game.

Smelting recipes

The following items can be smelted/cooked:

Fuel

The following items can be used as fuel:

	Item	Burning time in seconds	Items smelted per fuel		Remainder
	Coal Block	370	123​⅓		Nothing
	Lava Bucket	60	20		Empty Bucket
	Lava Source	60	20		Nothing
	Coal Lump	40	13​⅓		Nothing
	Jungle Tree	38	12​⅔		Nothing
	Acacia Tree	34	11​⅓		Nothing
	Apple Tree	30	10		Nothing
	Any tree (fallback)	30	10		Nothing
	Locked Chest	30	10		Nothing
	Chest	30	10		Nothing
	Bookshelf	30	10		Nothing
	Vessels Shelf	30	10		Nothing
	Pine Tree	26	8​⅔		Nothing
	Aspen Tree	22	7​⅓		Nothing
	Boat	20	6​⅔		Nothing
	Cactus	15	5		Nothing
	Wooden Door	14	4​⅔		Nothing
	Fancy Bed	13	4​⅓		Nothing
	Simple Bed	12	4		Nothing
	Wooden Sign	10	3​⅓		Nothing
	Jungle Wood Planks	9	3		Nothing
	Jungle Wood Fence	9	3		Nothing
	Jungle Wood Fence Gate	9	3		Nothing
	Acacia Wood Fence Gate	8	2​⅔		Nothing
	Acacia Wood Fence	8	2​⅔		Nothing
	Acacia Bush Stem	8	2​⅔		Nothing
	Acacia Wood Planks	8	2​⅔		Nothing
	Apple Wood Fence Gate	7	2​⅓		Nothing
	Wooden Ladder	7	2​⅓		Nothing
	Jungle Wood Fence Rail	7	2​⅓		Nothing
32px	Inner Acacia Wood Stair	7	2​⅓		Nothing
	Apple Wood Fence	7	2​⅓		Nothing
	Emergent Jungle Tree Sapling	7	2​⅓		Nothing
32px	Inner Jungle Wood Stair	7	2​⅓		Nothing
	Bush Stem	7	2​⅓		Nothing
	Apple Wood Planks	7	2​⅓		Nothing
	Any wooden planks (fallback)	7	2​⅓		Nothing
	Wooden Trapdoor	7	2​⅓		Nothing
	Wooden Pickaxe	6	2		Nothing
	Pine Wood Fence Gate	6	2		Nothing
	Acacia Wood Stair	6	2		Nothing
	Acacia Tree Sapling	6	2		Nothing
32px	Inner Wooden Stair	6	2		Nothing
	Pine Bush Stem	6	2		Nothing
	Pine Wood Planks	6	2		Nothing
	Jungle Tree Sapling	6	2		Nothing
	Jungle Wood Stair	6	2		Nothing
	Acacia Wood Fence Rail	6	2		Nothing
	Pine Wood Fence	6	2		Nothing
	Wooden Axe	6	2		Nothing
	Aspen Wood Planks	5	1​⅔		Nothing
	Wooden Sword	5	1​⅔		Nothing
	Large Cactus Seedling	5	1​⅔		Nothing
	Aspen Wood Fence Gate	5	1​⅔		Nothing
	Apple Wood Fence Rail	5	1​⅔		Nothing
32px	Inner Pine Wood Stair	5	1​⅔		Nothing
	Wooden Stair	5	1​⅔		Nothing
	Apple Tree Sapling	5	1​⅔		Nothing
	Pine Tree Sapling	5	1​⅔		Nothing
	Any sapling (fallback)	5	1​⅔		Nothing
	Aspen Wood Fence	5	1​⅔		Nothing
	Wooden Hoe	5	1​⅔		Nothing
	Mapping Kit	5	1​⅔		Nothing
	Blueberry Bush Sapling	5	1​⅔		Nothing
32px	Outer Jungle Wood Stair	5	1​⅔		Nothing
32px	Outer Acacia Wood Stair	5	1​⅔		Nothing
32px	Inner Aspen Wood Stair	4	1​⅓		Nothing
	Acacia Wood Slab	4	1​⅓		Nothing
	Any leaves	4	1​⅓		Nothing
	Pine Wood Fence Rail	4	1​⅓		Nothing
	Aspen Tree Sapling	4	1​⅓		Nothing
	Acacia Bush Sapling	4	1​⅓		Nothing
32px	Outer Wooden Stair	4	1​⅓		Nothing
	Jungle Wood Slab	4	1​⅓		Nothing
	Wooden Shovel	4	1​⅓		Nothing
	Torch	4	1​⅓		Nothing
	Pine Wood Stair	4	1​⅓		Nothing
	Jungle Grass	3	1		Nothing
	Aspen Wood Fence Rail	3	1		Nothing
32px	Outer Pine Wood Stair	3	1		Nothing
	Bush Sapling	3	1		Nothing
	Wooden Slab	3	1		Nothing
	Papyrus	3	1		Nothing
	Straw	3	1		Nothing
	Pine Wood Slab	3	1		Nothing
	Aspen Wood Stair	3	1		Nothing
	Book	3	1		Nothing
	Book With Text	3	1		Nothing
32px	Outer Aspen Wood Stair	3	1		Nothing
	Straw Stair	2	⅔		Nothing
32px	Inner Straw Stair	2	⅔		Nothing
	Dry Shrub	2	⅔		Nothing
	Dry Grass	2	⅔		Nothing
	Marram Grass	2	⅔		Nothing
	Aspen Wood Slab	2	⅔		Nothing
	Pine Bush Sapling	2	⅔		Nothing
	Grass	2	⅔		Nothing
	Fern	2	⅔		Nothing
	Paper	1	⅓		Nothing
32px	Outer Straw Stair	1	⅓		Nothing
	Straw Slab	1	⅓		Nothing
	Wheat	1	⅓		Nothing
	String	1	⅓		Nothing
	Cotton	1	⅓		Nothing
	Stick	1	⅓		Nothing