The Minecraft Official Site notes the blast furnace works twice as fast as a normal furnace when smelting ores and metals. This guide covers the exact crafting recipe, the smooth stone prerequisite that trips up most players, and how Java and Bedrock editions handle the block differently.
Ingredients: 5 Iron Ingots + 1 Furnace + 3 Smooth Stone · Smelting speed: 2× faster than regular furnace for ores · Fuel use: Same as regular furnace per item smelted · Generated in: Village armorer houses and trail ruins · Recipe added: Village & Pillage update (1.14)
Quick snapshot
- 5 Iron Ingots, 1 Furnace, 3 Smooth Stone (Minecraft Official Site)
- 2× faster ore smelting speed (Minecraft Official Site)
- Recipe identical in Java and Bedrock editions (RoyalCDKeys Guide)
- Exact fuel consumption rates beyond the 2× speed multiplier
- Whether any mechanics changed in recent 1.20+ updates
- Specific command syntax for Bedrock facing directions
- Added April 23, 2019 in Village & Pillage (1.14) (Minecraft Official Site)
- Smooth stone guides updated through 2025 (Minecraft Official Site)
- Automate with hoppers for bulk ore processing
- Build an armorer village for free blast furnaces
- Compare smoker vs blast furnace for optimal base setup
The table below summarizes key blast furnace specifications against regular furnaces for quick reference.
| Attribute | Value |
|---|---|
| Crafting recipe | 5 Iron Ingots + 1 Furnace + 3 Smooth Stone |
| First added | Village & Pillage (April 23, 2019) |
| Smelting speed | 2× faster than regular Furnace |
| XP yield modifier | 0.5× (half the experience) |
| Smelts | Ores, metals, tools, armor |
| Does not smelt | Food, sand, glass, stone variants |
| Natural generation | Armorer houses, trail ruins |
| Piston pushable | Bedrock only |
What is the recipe for a blast furnace?
The blast furnace requires three smooth stone blocks placed in the bottom row of the crafting grid, a regular furnace in the center slot, and iron ingots filling every remaining cell. That means three smooth stone blocks beneath a regular furnace in a crafting grid, surrounded by five iron ingots, should do the trick, according to the Minecraft Official Site.
Crafting grid layout
Visualize the 3×3 crafting grid: the bottom row holds three smooth stone blocks across all three slots. The middle row has the furnace in the center, with iron ingots on the left and right. The top row is entirely iron ingots. Once assembled correctly, one blast furnace appears in the result slot.
Required materials
- 5 Iron Ingots (crafted from iron ore in a furnace)
- 1 Furnace (crafted from 8 cobblestone)
- 3 Smooth Stone (smelted from regular stone twice)
You cannot skip steps: that furnace in the center must already exist, and the smooth stone requires smelting cobblestone into stone, then stone into smooth stone. A fully self-sufficient blast furnace costs 11 cobblestone indirectly.
How to make smooth stone for blast furnace?
Smooth stone is the blocker that prevents most players from crafting their first blast furnace. The Minecraft Wiki confirms that smooth stone requires a two-step smelting process, and you cannot rush it.
Smelting stone in furnace
- First smelt: place cobblestone in a regular furnace with any fuel (coal, charcoal, wood). Output is regular stone.
- Second smelt: take that stone output, place it back in the furnace with fuel. Output is smooth stone.
This two-step process means one batch of smooth stone requires burning fuel twice per block. Plan accordingly if you’re mass-producing blast furnaces for an early-game base.
Stone sources
Cobblestone is essentially unlimited in survival mode—any stone block mined with a pickaxe below diamond tier yields cobblestone. Strip-mining, caving, or simply clearing land for a base all generate more than enough cobblestone to produce smooth stone in bulk.
A blast furnace cannot smelt stone variants directly. According to the RoyalCDKeys Guide, attempting to smelt cobblestone or regular stone into smooth stone in a blast furnace will fail—stick with a regular furnace for that conversion.
The implication: budget extra fuel when preparing smooth stone in bulk, since the two-step process doubles your smelting time per block.
Why can’t I make a blast furnace?
The three most common reasons a blast furnace won’t craft are all related to the smooth stone requirement, which surprises many players who assume “stone” means any stone variant.
Missing smooth stone
Players often have plenty of cobblestone or regular stone but zero smooth stone. Remember: the recipe requires smooth stone specifically—regular stone will not work. Check your inventory or crafting preview before troubleshooting other factors.
Edition differences
One mechanical difference exists between editions: in Bedrock Edition, blast furnaces can be pushed by pistons, while in Java Edition they cannot. This affects automated designs but not the crafting recipe itself—both editions use identical input materials and output.
Recipe not unlocked
In Java Edition, the blast furnace recipe was initially locked behind a “crafted” discovery trigger that required the player to have smelted stone first. This system was removed in later updates, but players on older worlds with early 1.14 saves may find the recipe hidden until smelting stone unlocks it.
What this means: if your blast furnace recipe stays hidden despite having all materials, smelt at least one cobblestone-to-stone batch to unlock it.
Is a blast furnace better than a furnace?
The answer depends entirely on what you’re smelting. For ores and metal tools, the blast furnace wins decisively. For food, XP farming, or bulk clay processing, stick with a regular furnace.
Speed comparison
They smelt ore blocks, tools, and armor, just like regular furnaces. But they work twice as fast as regular furnaces do, according to the Minecraft Official Site. For processing a full inventory of iron ore after a mining trip, that 2× speed translates to cutting your wait time in half.
Fuel efficiency
Here is the trade-off: fuel burns at 2× the rate, but fuel efficiency per item smelted matches a regular furnace. The blast furnace does not save you coal or charcoal overall—it just consumes it faster while processing materials faster. However, you gain XP at half the rate (0.5× modifier), so players prioritizing experience will prefer regular furnaces for XP farming.
The comparison table below breaks down how each furnace type performs across speed, XP yield, and fuel consumption.
| Furnace type | Best use | Speed | XP yield | Fuel rate |
|---|---|---|---|---|
| Blast Furnace | Ores and metals | 2× | 0.5× | 2× (but same per item) |
| Regular Furnace | Food, clay, general | 1× | 1× | 1× |
| Smoker | Food only | 2× | 1× | 2× |
The pattern: each furnace variant targets a specific material category, and mixing them up wastes fuel without yielding output.
What can blast furnaces not smelt?
A blast furnace is designed for one category: ores, metals, and metal-bound items. It cannot handle organic materials, glass ingredients, or stone conversion. Using the wrong block wastes fuel and delivers nothing.
Non-ore items
- Food items (raw chicken, raw beef, raw cod, carrots, potatoes)
- Clay and terracotta raw materials
- Sand, gravel, soul sand
- Cactus and green dye materials
- Cobblestone, stone, smooth stone (any stone variant)
For any of these, a regular furnace or smoker does the job. The YouTube Guide on furnace types emphasizes that three furnace variants exist precisely because each handles a different category optimally.
Comparison to smoker
The smoker is the blast furnace’s counterpart for food—it works at 2× speed but gives full XP, unlike the blast furnace’s halved experience. If you process food in volume (animal farms, fishing operations), a smoker belongs in your base alongside your blast furnace.
Building a base with only blast furnaces means your food processing runs at regular furnace speed. Mid-game bases benefit from having one of each furnace type: blast furnace for mining returns, smoker for food farms, regular furnace for clay and general smelting.
The catch: optimizing your base layout means matching furnace type to material category—the blast furnace’s speed advantage vanishes entirely when smelting food or stone.
Steps: How to craft a blast furnace
Follow these steps in order. The process takes approximately 20-30 minutes in a fresh survival world, depending on available resources and fuel.
Step 1: Gather cobblestone
Mine stone blocks with a pickaxe. Any stone variant below diamond tier drops cobblestone. Target at least 20 cobblestone to account for the furnace, smooth stone production, and potential retries.
Step 2: Craft a regular furnace
Place 8 cobblestone in a ring pattern (leaving the center slot empty) on the crafting table. This yields 1 furnace. You’ll need this for both the blast furnace recipe and the smooth stone production chain.
Step 3: Smelt cobblestone to stone
Load your regular furnace with cobblestone and fuel (coal, charcoal, wood). One input batch produces stone. Smelt at least 3 stone blocks—you need 3 smooth stone for one blast furnace.
Step 4: Smelt stone to smooth stone
Load the output from step 3 back into the furnace as input. The second smelt converts stone to smooth stone. Repeat until you have 3 smooth stone blocks.
Step 5: Smelt iron ore to iron ingots
Mine iron ore (typically found below Y-level 64) and smelt it in your regular furnace. You need 5 iron ingots for the blast furnace recipe.
Step 6: Assemble the recipe
Open your crafting grid. Place 3 smooth stone in the bottom row, place the furnace in the center, and fill all remaining slots with iron ingots. Collect your blast furnace.
Bottom line: Players who invest the 11 cobblestone and two-step smooth stone production cut their ore processing time in half for every mining trip that follows. The fuel savings are negligible, but the time saved when processing large iron or gold hauls makes the blast furnace one of the highest-value crafting investments in the game.
Confirmed facts
- Recipe uses 3 smooth stone (not 4)
- Recipe identical across Java and Bedrock editions
- Blast furnace cannot smelt stone variants
- Natural generation in armorer houses and trail ruins
What’s unclear
- Exact fuel consumption rates beyond 2× multiplier
- Post-1.20 update mechanics
- Specific Bedrock command syntax for facing directions
Three smooth stone blocks beneath a regular furnace in a crafting grid, surrounded by five iron ingots, should do the trick.
— Minecraft Official Site (Official Blog)
They smelt ore blocks, tools, and armour, just like regular furnaces. But they work twice as fast as regular furnaces do!
— Minecraft Official Site (Official Blog)
A Blast Furnace is for ores/metals—it cannot smelt Stone into Smooth Stone.
For players running early-game survival bases, the choice is straightforward: invest the 11 cobblestone and two-step smooth stone production now, and cut your ore processing time in half for every mining trip that follows. The fuel savings are negligible, but the time saved when processing large iron or gold hauls makes the blast furnace one of the highest-value crafting investments in the game.
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Frequently asked questions
Can you still craft a blast furnace?
Yes, blast furnaces remain craftable in all current Minecraft editions. The recipe has not changed since its introduction in the Village & Pillage update.
Which is better, a smoker or a blast furnace?
A smoker is better for food processing (2× speed with full XP). A blast furnace is better for ores and metals (2× speed, but half XP). They serve different purposes and complement each other in a well-rounded base.
Can a blast furnace do everything a furnace can do?
A blast furnace cannot smelt food, sand, clay, or stone variants. It is designed exclusively for ores, metals, tools, and armor. For those items, it works twice as fast—but for anything else, you still need a regular furnace.
How to craft a blast furnace in Minecraft?
Open the crafting table, place a furnace in the center slot, 3 smooth stone in the bottom row, and fill the remaining 6 slots with iron ingots. Collect the blast furnace from the result slot.
What is the blast furnace recipe in Java edition?
The Java Edition recipe uses exactly the same materials as Bedrock: 5 iron ingots, 1 furnace, and 3 smooth stone. The only mechanical difference is that Java Edition blast furnaces cannot be pushed by pistons.
What is the blast furnace recipe in Bedrock edition?
The Bedrock Edition recipe matches Java exactly: 5 iron ingots, 1 furnace, and 3 smooth stone. Bedrock allows pistons to push blast furnaces, which affects automated designs.
Priya Mitchell leads fact-checking, source verification and corrections at Oz Monitorly.