Which fuels burn the longest in Minecraft?
Fuel efficiency found in Smelting
Burn Time Burn Time Fuel needed to
Fuel (ticks) (smeltings*) smelt 64 items
----------------------------------------------------------------------
Lava Bucket 20000 100 0.64
Block of Coal 16000 80 0.8
Blaze Rod 2400 12 5.3
Coal and Charcoal 1600 8 8
Huge Mushrooms 300 1.5 43
Wood and wooden things† 300 1.5 43
Daylight Sensors 300 1.5 43
Banners 300 1.5 43
Wood tools and weapons 200 1 64
Wooden Slabs 150 0.75 86
Stick 100 0.5 128
Saplings 100 0.5 128
* Number of items smelted per fuel item
† Anything mostly crafted from wood: Crafting tables, Chests, Jukebox (Except Slabs)
Note that the effective efficiency of the long-burning materials goes down rapidly if you don't restock the furnace.
Sorting the entries in this table based on the last column gives this list:
- Lava Bucket
- Block of Coal
- Blaze Rod
- Charcoal
- Coal
- Fence
- Fence Gate
- Wooden Stairs
- Wooden Pressure Plate
- Wood Planks
- Wood
- Chest
- Trapped Chest
- Daylight Sensor
- Bookshelf
- Crafting Table
- Trapdoor
- Huge Mushrooms
- Note Block
- Jukebox
- Wooden Tools and Weapons
- Wooden Slabs
- Stick
- Saplings
Found an even better list
Under the section "Fuel efficiency"
From most to least efficient (according to new list):
- Lava Bucket
- Block of coal
- Blaze rod
- coal
- charcoal
- Huge Mushrooms
- Note Block
- Jukebox
- Daylight Sensor
- Trapped Chest
- Chest
- Bookshelf
- Crafting table
- Trapdoor
- Wooden Stairs
- Fence Gate
- Fence
- Wooden preasure plate
- Wood
- Wood Planks
- Wooden Tools and Weapons
- Wooden slabs
- Stick
- Saplings
@Meraj99 - Because you can use them as fuel for a furnace xD