the technique of making the elixir of life

GUI interface of furnace

Smelting (It may also be called smelt 、 Firing or cooking ）It is a way of refining or heating articles in Minecraft. As long as suitable materials are given, corresponding finished products will be output. It can be used for burning furnace 、 blast furnace or Smoker Go ahead, some food Can also be used campfire Cooking.

Purpose and mechanism [ ]

Furnace [ ]

Put fuel in furnace The items to be burned will start burning after being put into the input tank, even if the player closes the interface. At the beginning of burning, a portion of fuel will be used to fill the flame diagram on the interface. The flame will gradually weaken over time, regardless of whether there are still items to be burned. The furnace will use the next fuel if there is still something to be burned after the flame gradually weakens until it disappears.

It takes 10 seconds to use the furnace to burn an item, and the arrow in the interface will display the burning progress. If the arrow has been filled before the flame disappears, the burnt articles can be converted into finished products and displayed in the output slot; If the flame has disappeared and no fuel is replenished before the arrow is filled, the progress of the arrow will reverse at twice the speed.

If the player is too far away from the smelting furnace block Unload, the furnace will suspend burning until the player returns to the valid range. The furnace will also pause burning after players enter other dimensions or exit the game. Whether the player sleeps or not will not affect the speed of burning, because the progress of burning depends on the actual length of time the player spends in the game. When sleeping, Minecraft will directly skip the game time to the morning, and the progress of burning will not increase instantaneously because of skipping the night.

Players will gain corresponding number of experience points when taking out finished products. Even if the items from the furnace are funnel Receive. Players will also gain experience points accumulated in the furnace after taking out any burning products from the furnace or destroying the furnace.

Blast furnace and fumigation furnace [ ]

Items can also be used blast furnace and Smoker For smelting, its GUI interface and use method are the same as those of ordinary furnaces, and the smelting efficiency is twice that of ordinary furnaces, that is, it only takes 5 seconds to burn an item. But the blast furnace can only smelt metal and smelt metal tools, weapons and armor, and the smoke stove can only burn food.

campfire [ ]

Food can also be used campfire Burn, and do not need fuel. Players need to hold formula The food listed in is directed at a lighted campfire and use It. As long as the campfire is still burning, food can be cooked without limit. It takes 30 seconds to smelt an item, which is 3 times the smelting time of the furnace. Campfire can burn up to 4 items at a time. After burning, the item will pop up and become a falling object.

formula [ ]

food [ ]

Some food can be found in furnace 、 Smoker or campfire Cooking.

Material Science	product	experience	brief introduction
Raw pork chop	Cooked pork chop	zero point three five	recovery 8（） , while those born only recover 3（）。
Raw beef	steak	zero point three five	recovery 8（） , while those born only recover 3（）。
Raw chicken	Cooked chicken	zero point three five	recovery 6（） , while those born only recover 2（） And may food poisoning 。
Raw cod	Cooked cod	zero point three five	recovery 5（） , while those born only recover 2（）。
Raw salmon	Cooked salmon	zero point three five	recovery 6（） , while those born only recover 2（） .
Potato	patatas bravas	zero point three five	recovery 5（） , while those born only recover 1（）。
Raw mutton	cooked mutton	zero point three five	recovery 6（） , while those born only recover 2（）。
Raw rabbit meat	Cooked rabbit meat	zero point three five	recovery 5（） , while those born only recover 3（）。
Kelp	Dried kelp	zero point one	recovery 1（）。

mineral [ ]

Ore can be stored in furnace or blast furnace Smelting.

Material Science	product	experience	brief introduction
Iron ore 、 Deep iron ore or Crude iron	Iron ingot	zero point seven	It is used to manufacture various items. When the iron ore or deep iron ore is excavated normally, 1 coarse iron will fall. See Iron ingot 。
Copper ore 、 Deep copper ore or Crude copper	copper ingot	zero point seven	It is used to manufacture various items. When mining copper ore or deep copper ore normally, 2-5 pieces of coarse copper will fall. See copper ingot 。
Gold ore 、 Deep gold ore or Crude gold	gold bullion	one	It is used to manufacture various items. When the gold ore or deep gold ore is excavated normally, 1 coarse gold will fall. See gold bullion 。
Lower bound gold ore	gold bullion	one	It will drop 2-6 pieces during normal excavation Gold grain And 0-1 experience.
Ancient remains	Lower boundary alloy fragments	two	Raw materials for synthetic forging lower boundary alloy equipment Lower boundary alloy ingot 。
Diamond ore or Deep diamond ore	Diamonds	one	It is used to synthesize various items. One diamond and 3-7 experience will be dropped when digging normally.
Lapis Lazuli Ore or Deep lapis lazuli ore	lapis lazuli	zero point two	Used for enchanting and synthesis Lapis lazuli block and Blue dye 。 When digging normally, 4-9 lapis lazuli and 2-5 experience will be dropped.
Redstone Ore or Deep red stone ore	Redstone	zero point seven	be used for synthesis 、 brew and Redstone circuit Medium. 4-5 rubbles and 1-5 experiences will be dropped during normal excavation.
Coal mine stone or Deep coal mine stone	coal	zero point one	As fuel or made Torches Lighting use. One coal and 0-2 experience will be dropped during normal excavation.
Emerald Ore or Deep emerald ore	emerald	one	Used with villager conduct transaction And synthesis Emerald block 。 When digging normally, 1 emerald and 3-7 experience will be dropped.
Nether Quartz Ore	nether quartz	zero point two	It is used to make a variety of items. One lower bound quartz and 2-5 experience will be dropped during normal excavation.

Tools, weapons and armor [ ]

The following items can be found in furnace or blast furnace Burning.

Material Science	product	experience	brief introduction
Ferruginous tool 、 a helmet and armor and Horse armor ； Chain Armor	Iron grain	zero point one	Can be synthesized Iron ingot 、 lantern 、 Soul lantern and Chain 。
gold tool 、 a helmet and armor and Horse armor	Gold grain	zero point one	Can be synthesized gold bullion 、 Glittering watermelon slices and Golden carrot 。 It can be used to make stars Firework Star 。

Other items that can be burned [ ]

The following items can only be used in furnace Medium heat refining.

Material Science	product	experience	brief introduction
sand or Red sand	Glass	zero point one	It is used to make transparent structures such as windows, and can also be used for composition Glass plate and Glass bottles 。
Cobble	stone	zero point one	As a building material, it can also be used to synthesize the following block or red stone elements: stairs 、 steps 、 Stone brick 、 Stone cutter 、 Pressure plate 、 Button 、 Redstone Comparator and Redstone Repeater 。
Deep slate boulder	Deep slate	zero point one	Used as building materials.
stone	Smooth stone	zero point one	It can be used as building material and also as synthetic talc steps and blast furnace 。
Sandstone or Red sandstone	Smooth Sandstone or Smooth red sandstone	zero point one	It can be used as a building material, as well as for synthetic stairs and steps.
Quartz block	Smooth quartz block	zero point one	It can be used as a building material, as well as for synthetic stairs and steps.
Clay ball	red brick	zero point three	For synthesis brick and Flowerpot 。
Lower boundary rock	Lower bound brick	zero point one	For synthesis Lower bound brick 、 Lower boundary brick fence and Red lower bound brick 。
ball of clay	Ceramic tile	zero point three five	It can be used as building material and also for synthesis Dyed pottery tile 。
Stone brick	Cracked stone brick	zero point one	Used as building materials. Will also be generated on fortress Medium.
Lower bound brick	Brick at lower boundary of crack	zero point one	Used as building materials.
Ground black stone brick	Cracked ground black stone brick	zero point one	Used as building materials. Also generated on Fortress Relics Medium.
basalt	Smooth basalt	zero point one	Used as building materials. Also generated on Amethyst hole Medium.
Corresponding Dyed pottery tile	Glazed ceramic tile	zero point one	Decorative Blocks.
Log Peeler Logs wood Peeled wood	charcoal	zero point one five	Pre game coal succedaneum. For production Torches or Firebomb And as furnace or Powered Minecart ^{[Only Java version ]} Fuel use.
cactus	Green dye	one^{[Only Java version ]} zero point two^{[Only Bedrock plate ]}	As dyestuff use.
Wet sponge	Sponge	zero point one five	dry Sponge And make it reusable. After the furnace is "ignited", an empty bucket can be placed in the fuel tank to "catch water" and a water bucket will be obtained.
Zisong Fruit	Popping Purple Songguo	zero point one	Used to make Zibo block and End of the earth candle 。
Sea pickle	Yellow green dye	zero point two	As dyestuff use.

About with Decimal Values Experience value Note: For the decimal value, first multiply this value by the number of smelting items removed from the furnace, and then reward the player with an integer part. If there is a decimal part left, it indicates the probability of obtaining additional experience points.

For example, if you burn 1 wood and harvest 1 charcoal, the experience value is 0.1, so there is a 10% probability of obtaining 1 experience value.
For another example, six pickles are burned and six yellow green dyes are harvested. The value is 0.2 * 6=1.2, so 1 experience value is obtained and there is a 20% probability of obtaining 1 experience value again.

Fuel efficiency [ ]

furnace Each operation of takes 10 seconds, blast furnace and Smoker It is 5 seconds (it can only shorten the combustion time, and the calorific value of the fuel remains unchanged).

Fuel	Combustion time (s)^{[Note 1]}	Number of items burned per unit of fuel	Number of items burned by each group of fuel^{[Note 2]}	Burning seconds per log block^{[Note 3]}	Quantity of fuel required for burning 1 group (64 items)	remarks
Lava barrel	one thousand 16:40 20000	one hundred	one hundred	Not applicable	zero point six four	When using lava barrels as fuel, empty barrel Will remain in the fuel tank.
Coal block	eight hundred 13:20 16000	eighty	five thousand one hundred and twenty	Not applicable	zero point eight
Dried kelp	two hundred point zero five 3:20.05 4001 quarter	twenty point zero zero five	one thousand two hundred and eighty point three two	Not applicable	three^{seven hundred and ninety-seven} ⁄_{four thousand and one} （~3.199）
Flame rod	one hundred and twenty 2:00 2400	twelve	seven hundred and sixty-eight	Not applicable	five^one ⁄_three
coal	eighty 1:20 1600	eight	five hundred and twelve	Not applicable	eight
charcoal	eighty 1:20 1600	eight	five hundred and twelve	25.09... to 80^{[Note 4]} Usually 68.6 to 70	eight
ship	sixty 1200	six	six	forty-eight	ten^two ⁄_three
Bamboo raft	sixty 1200	six	six	Not applicable	ten^two ⁄_three
Transport ship	sixty 1200	six	six	eighteen^six ⁄_thirteen （~18.46）	ten^two ⁄_three
Main World Wood Hanging billboard	forty 800ke	four	sixty-four	six^two ⁄_three	sixteen
Suspended bamboo notice board	forty 800ke	four	sixty-four	Not applicable	sixteen
hive	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
hive	fifteen 300	one point five	ninety-six	ten	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Scaffolding	sixty 1200	six	three hundred and eighty-four	Not applicable	ten^two ⁄_three	^{[Only Bedrock plate ]}
Scaffolding	two point five 50 quarter	zero point two five	sixteen	Not applicable	two hundred and fifty-six	^{[Only Java version ]}
Main world Log And its peeled variety	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
Bamboo block and Peeled bamboo	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main world wood And its peeled variety	fifteen 300	one point five	ninety-six	eleven point two five	forty-two^two ⁄_three
Main world board	fifteen 300	one point five	ninety-six	sixty	forty-two^two ⁄_three
bamboo clappers	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Bamboo mosaic	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main World Wood Pressure plate	fifteen 300	one point five	ninety-six	thirty	forty-two^two ⁄_three
Bamboo pressure plate	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main World Wood fence	fifteen 300	one point five	ninety-six	thirty-six	forty-two^two ⁄_three
Bamboo fence	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main World Wood Fence gate	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
Bamboo fence door	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main World Wood stairs	fifteen 300	one point five	ninety-six	forty	forty-two^two ⁄_three
Bamboo stairs	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Bamboo mosaic staircase	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main World Wood Flap door	fifteen 300	one point five	ninety-six	twenty	forty-two^two ⁄_three
Bamboo trap door	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
workbench	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
Drafting desk	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
Arrow making platform	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
Forging table	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
loom	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three
bookshelf	fifteen 300	one point five	ninety-six	ten	forty-two^two ⁄_three
platform	fifteen 300	one point five	ninety-six	six	forty-two^two ⁄_three
Compost bucket	fifteen 300	one point five	ninety-six	seventeen^one ⁄_seven （~17.14）	forty-two^two ⁄_three
case	fifteen 300	one point five	ninety-six	seven point five	forty-two^two ⁄_three
Trap box	fifteen 300	one point five	ninety-six	six^six ⁄_seven （~6.86）	forty-two^two ⁄_three
Wooden barrel	fifteen 300	one point five	ninety-six	fifteen	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Wooden barrel	fifteen 300 quarter	one point five	ninety-six	eight^four ⁄_seven （~8.57）	forty-two^two ⁄_three	^{[Only Java version ]}
Solar detector	fifteen 300	one point five	ninety-six	forty	forty-two^two ⁄_three
jukebox	fifteen 300	one point five	ninety-six	seven point five	forty-two^two ⁄_three
Note box	fifteen 300	one point five	ninety-six	seven point five	forty-two^two ⁄_three
flag	fifteen 300	one point five	twenty-four	one hundred and twenty	forty-two^two ⁄_three
Main World Wood steps	fifteen 300	one point five	ninety-six	one hundred and twenty	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Main World Wood steps	seven point five 150	zero point seven five	forty-eight	sixty	eighty-five^one ⁄_three	^{[Only Java version ]}
Bamboo steps	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Bamboo steps	seven point five 150	zero point seven five	forty-eight	Not applicable	eighty-five^one ⁄_three	^{[Only Java version ]}
Bamboo mosaic steps	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Bamboo mosaic steps	seven point five 150	zero point seven five	forty-eight	Not applicable	eighty-five^one ⁄_three	^{[Only Java version ]}
arch	fifteen 300	one point five	one point five	forty	forty-two^two ⁄_three	^{[Only Java version ]}
arch	ten 200 quarter	one	one	twenty-six^two ⁄_three	sixty-four	^{[Only Bedrock plate ]}
Crossbow	fifteen 300	one point five	one point five	forty	forty-two^two ⁄_three	^{[Only Java version ]}
Crossbow	ten 200 quarter	one	one	seventeen^seven ⁄_nine （17. seven ）	sixty-four	^{[Only Bedrock plate ]}
Fishing rod	fifteen 300	one point five	one point five	forty	forty-two^two ⁄_three
ladder	fifteen 300	one point five	ninety-six	fifty-one^three ⁄_seven （~51.43）	forty-two^two ⁄_three
Red tree root	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three
Main World Wood Button	fifteen 300	one point five	ninety-six	sixty	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Main World Wood Button	five 100 quarter	zero point five	thirty-two	twenty	one hundred and twenty-eight	^{[Only Java version ]}
Bamboo button	fifteen 300	one point five	ninety-six	Not applicable	forty-two^two ⁄_three	^{[Only Bedrock plate ]}
Bamboo button	five 100 quarter	zero point five	thirty-two	Not applicable	one hundred and twenty-eight	^{[Only Java version ]}
Carved bookshelf	fifteen 300	one point five	ninety-six	twenty-eight^one ⁄_eight	forty-two^two ⁄_three
wood Pickaxe	ten 200 quarter	one	one	ten	sixty-four
wood Spade	ten 200 quarter	one	one	twenty	sixty-four
wood Hoe	ten 200 quarter	one	one	thirteen^one ⁄_three	sixty-four
wood Axe	ten 200 quarter	one	one	ten	sixty-four
wood The sword	ten 200 quarter	one	one	sixteen	sixty-four
Main World Wood Notice board	ten 200 quarter	one	sixteen	eighteen^six ⁄_thirteen （~18.46）	sixty-four
Bamboo notice board	ten 200 quarter	one	sixteen	Not applicable	sixty-four
Main World Wood door	ten 200 quarter	one	sixty-four	twenty	sixty-four
Bamboo door	ten 200 quarter	one	sixty-four	Not applicable	sixty-four
bowl	ten 200 quarter	one	sixty-four	fifty-three^one ⁄_three	sixty-four	^{[Only Bedrock plate ]}
bowl	five 100 quarter	zero point five	thirty-two	twenty-six^two ⁄_three	one hundred and twenty-eight	^{[Only Java version ]}
sapling	five 100 quarter	zero point five	thirty-two	Not applicable	one hundred and twenty-eight
wood stick	five 100 quarter	zero point five	thirty-two	forty	one hundred and twenty-eight
wool	five 100 quarter	zero point five	thirty-two	Not applicable	one hundred and twenty-eight	^{[Only Java version ]}
carpet	three point three five 67th quarter	zero point three three five	twenty-one point four four	Not applicable	one hundred and ninety-one^three ⁄_sixty-seven （~191.04）	^{[Only Java version ]}
Bamboo	two point five 50 quarter	zero point two five	sixteen	Not applicable	two hundred and fifty-six
Rhododendron bush	five 100 quarter	zero point five	thirty-two	Not applicable	one hundred and twenty-eight

↑ These are the times when the fuel burns in the furnace. stay blast furnace or Smoker The burning speed of fuel in the furnace is twice that in the furnace, but the quantity of products is the same.
↑ Red items represent non stackable items, while yellow items represent 16 stackable items.
↑ This column represents the number of seconds that the fuel can be burned with one log. A red object indicates that it is not entirely composed of logs.
↑ This value depends on the fuel used to make charcoal. When the trap box is used as fuel, this value will be smaller, while the fuel that does not consume wood (such as saplings or lava) can get a larger value. The value obtained by using charcoal as fuel is 70. At this time, players can get 7 charcoal for every 8 logs consumed. The lower limit of this "reasonable" value is 6 * 80/7 ≈ 68.6, which is obtained by synthesizing one log into four boards to burn logs to obtain six charcoal.

achievement [ ]

achievement	In game description	Actual demand (if different)	Xbox Points	Trophy (PS)
to get tough Acquire Hardware	Melt a piece of iron ingot.	from furnace The output column of Iron ingot 。 It is invalid to use the funnel for indirect extraction.	15G	Copper cup
Delicious fish Delicious Fish	Fishing, then cooking!	from furnace The output column of Cooked fish 。 It is invalid to use the funnel for indirect extraction.	15G	Silver cup
Pork Chop Pork Chop	Cook and eat one Pork Chop 。	–	10G	Copper cup
renewable energy Renewable Energy	Burn wood with charcoal to make more charcoal.	stay furnace China and Israel charcoal Burning for fuel Log or wood 。	10G	Copper cup
Rabbit season Rabbit Season	Cooking and eating rabbit meat	eat up Cooked rabbit meat or Rabbit meat pot 。	15G	Copper cup
dry spell Dry Spell	stay furnace Medium drying one piece Sponge	–	15G	Copper cup
Super fuel Super Fuel	Support the furnace with lava	stay furnace 、 blast furnace or Smoker China and Israel Lava barrel Burn articles for fuel.	20G	Copper cup

speed of progress [ ]

Icon	speed of progress	In game description	Upstream progress	Actual demand (if different)	Namespace ID
	to get tough Acquire Hardware	Smelt an iron ingot	Get Upgrade	Get it in the item list Iron ingot 。	`story/smelt_iron`

history [ ]

Indev for Java
zero point three one	twenty million one hundred thousand one hundred and twenty-nine	Flint It can be used for burning mineral And cooking food.^[1]
twenty million one hundred thousand two hundred and nineteen		Added furnace, replaced Flint The burning function of.
twenty million one hundred thousand two hundred and twenty-three		The first thing that can be burned is round stone, which can be turned into stone through burning.
Java version
1.3.1	12w18a	Wooden tools can be used as fuel for burning an article.
	12w22a	Burning ores and items in the furnace will now give back experience.
	12w22a	The barrel will not be consumed when using lava as fuel.
1.7.2		Now each log step can only burn 0.75 items.
one point eight	14w04a	When a furnace runs out of fuel, the smelting progress will reverse at twice the speed.
one point one three	18w06a	Burning GUI now includes formula Column to allow players to know how to burn the previously burned goods , automatically fill in the items to be burned, and filter the formula of the items they can make from the item list.
		The custom recipe now passes the `data/(namespace)/recipes/(name).json` load.
		Not using the original package will remove all recipes.
	18w07a	Joined Dried kelp , can be used as fuel.
one point one four	18w43a	Joined Bamboo , can be used as fuel.
	18w43a	Withered shrubs It can now be used as fuel. Each withered shrub can burn 0.5 items.
	18w45a	Joined Scaffolding , can be used as fuel.
	19w02a	Now you can use campfire Burn and refine food.
one point one five	19w37a	ship You can now burn 6 items instead of 1 item previously.
one point one six	20w15a	Joined Soul campfire , which can be used to refine food.
one point one seven	21w11a	Rhododendron bush Now it can be used as the fuel of the furnace. Each rhododendron bush can burn 0.5 items.
one point one nine	22w11a	Now each scaffold can only burn 0.25 items.^[2]
	22w11a	Joined Red tree root , can be used as fuel.
	22w12a	Joined Transport ship , can be used as fuel.
Portable Alpha
0.3.2		With the addition of the furnace, all existing blocks and items can now be obtained through collection, synthesis, and burning (there are no unlimited items).
0.8.0		Wooden tools can now be used as fuel.
0.8.0		Now the lava bucket can burn 100 items.
0.11.0	build 1	Joined ship and Fishing rod , can be used as fuel.
0.12.1	build 1	Joined Flame rod , can be used as fuel.
0.13.0	build 1	Joined Note box and Solar sensor , can be used as fuel.
0.16.0	?	GUI interface of furnace has been changed.
Bedrock plate
1.2.0	1.2.0.2	Joined jukebox and flag , can be used as fuel.
1.4.0	1.2.13.8	Joined Peeler Logs , can be used as fuel.
1.4.0	1.2.14.2	Joined Dried kelp , can be used as fuel.
1.8.0	1.8.0.8	Joined Bamboo and Scaffolding , can be used as fuel.
1.10.0	1.10.0.3	Withered shrubs It can now be used as fuel, burning 0.5 items.
1.11.0	1.11.0.1	Now you can use campfire Burn and refine food.
1.11.0	1.11.0.1	Notice board Now it can be used as fuel.
New Nintendo 3DS Edition
1.1.06		Now, players' experience points will be rewarded when smelting ores.

You know what? [ ]

It takes 10 minutes and 40 seconds to burn a group (64 items) in a single furnace. This time can be compressed by using multiple furnaces.
use charcoal Used as fuel ratio Log or wood The fuel efficiency is 4 times higher (× 4.57), 1 times higher than that of wood^one ⁄_four Times.
stay Bedrock plate Medium, using board make Wooden steps It is more efficient to use wood as fuel than to use wood to burn logs or wood to obtain charcoal as fuel (× 1.875)
The most ideal fuel for burning charcoal is itself.
hold coal Composed as Coal block It can increase the burning efficiency (× 1.11). Nine coals can burn 72 items, while coal blocks can burn 80 items.
If wood tools are used as fuel, the most efficient way is to use them with only 1 durability and then use them as fuel.
"Burning" is a fairly broad term in Minecraft, while in the real world, burning has a more precise definition.^[3]

See [ ]

Tutorial/Funnel # Automatic Smelting

reference resources [ ]

↑ http://www.youtube.com/watch?v=OpmK7rDU5bA
↑ MC-165990 - The vulnerability status is "fixed".
↑ “Block of the Week: Furnace” – Minecraft. net, September 15, 2017

Game content

language

[1] These are the times when the fuel burns in the furnace. stay blast furnace or Smoker The burning speed of fuel in the furnace is twice that in the furnace, but the quantity of products is the same.

[2] Red items represent non stackable items, while yellow items represent 16 stackable items.

[3] This column represents the number of seconds that the fuel can be burned with one log. A red object indicates that it is not entirely composed of logs.

[4] This value depends on the fuel used to make charcoal. When the trap box is used as fuel, this value will be smaller, while the fuel that does not consume wood (such as saplings or lava) can get a larger value. The value obtained by using charcoal as fuel is 70. At this time, players can get 7 charcoal for every 8 logs consumed. The lower limit of this "reasonable" value is 6 * 80/7 ≈ 68.6, which is obtained by synthesizing one log into four boards to burn logs to obtain six charcoal.

[5] ttp://www.youtube.com/watch?v=OpmK7rDU5bA

[6] MC-165990 - The vulnerability status is "fixed".

[7] “Block of the Week: Furnace” – Minecraft. net, September 15, 2017

[Note 1]

Minecraft Wiki