Ancient debris has a blast resistance of 1,200 [1]. Netherrack, the block that makes up most of the Nether around it, has a blast resistance of 0.4 [8]. That’s not a rounding difference — it’s a 3,000x gap, and it’s the entire reason “blast mining” works as a strategy instead of just being a way to blow up your loot. Diamond ore, for comparison, only has a blast resistance of 3 [11]: TNT would wreck a diamond vein just as fast as the stone around it. Ancient debris is built different, and that fact changes how you should actually go looking for it.
This guide skips the vague “go dig around Y level 15ish” advice and gets specific: the exact Y-band with the highest debris density, the real ingot math for a full netherite kit (it’s 9 ingots, not the 10 you’ll see quoted elsewhere), where the smithing template actually comes from, and the netherite item Mojang added in December 2025 that most netherite guides still don’t mention. Verified against Minecraft Java Edition 1.21.11 and Bedrock 1.21.130 — check the changelog before assuming any exact number below still applies to a much later version.
Quick Start: Netherite in 6 Steps
If you already have a diamond pickaxe and a Nether portal, here’s the fastest honest path to your first netherite item:
- Bring a diamond or netherite pickaxe — anything weaker breaks ancient debris and drops nothing [1].
- Dig a tunnel at Y16, where debris concentration averages highest [1].
- Smelt each ancient debris block in a furnace or blast furnace — 1 debris in, 1 netherite scrap out [6].
- Combine 4 netherite scrap with 4 gold ingots at a crafting table (shapeless, any pattern) for 1 netherite ingot [2].
- Raid a Bastion Remnant for a Netherite Upgrade Smithing Template — guaranteed in every treasure chest [4].
- At a smithing table, place the template, your diamond item, and a netherite ingot to upgrade — no XP cost [3].
If you’re not that far into the Nether yet, our Intermediate Survival Guide covers portal construction and early Nether survival before you get here. This article picks up right where our Minecraft Complete Guide leaves off on gearing up past diamond.
Why Ancient Debris Survives TNT
Blast resistance isn’t the same stat as mining hardness — it specifically governs how much punishment a block takes from explosions, and Mojang set ancient debris’s value at 1,200, up from an original 720 during Nether Update testing [1]. For context, only obsidian shares that exact number — the two are tied for the highest blast resistance of any block obtainable in Survival mode [12]. Netherrack, blackstone, and basalt — the blocks that actually surround ancient debris — sit at 0.4, 6, and 4.2 respectively [8][13][14], so a TNT explosion clears a wide radius of surrounding stone while leaving any exposed ancient debris completely untouched.
That gap is what “blast mining” exploits: detonate TNT in a target area at Y16, and whatever ancient debris was inside the blast radius is left standing, fully exposed, with the surrounding rock gone. That’s why a single strip-mine tunnel at Y16 won’t reliably hit debris every time you dig one — the wiki’s cited average works out to roughly 1.56 debris per chunk [1], which is an average across many chunks, not a rate you can count on for any one tunnel. Blast mining doesn’t change that base rate; it just clears the rock around whatever’s already there faster than a pickaxe would, which matters more the deeper your tunnel network gets.
Where to Mine: Y-Levels and Picking a Strategy
Ancient debris generates in two overlapping vein types in Java Edition: a denser band between Y8 and Y24 (0-3 debris per cluster) and a sparser band spanning the full Y8-Y119 range (0-2 per cluster) [1]. Averaged across both, Y16 gives you the best odds of any single level. Bedrock Edition uses a similar dual-band spread. Neither edition puts debris anywhere above Y119 or below Y8 — don’t waste time digging near bedrock expecting a jackpot.
Which method to use depends on what you’ve already got access to:
- No TNT yet, early Nether access: strip-mine a 2-tall tunnel at Y16. Slower per debris found, but it needs nothing beyond the pickaxe you already have.
- TNT and obsidian available: blast-mine at Y16 — clear rock in bulk, then punch out whatever debris the explosion left standing. Faster per hour once you’re set up, wasteful if you’re only after one or two pieces.
- Already raiding Bastion Remnants for gear: loot the chests directly. Netherite scrap shows up directly in bastion loot chests without any mining or smelting at all [6] — skip the whole debris-to-scrap step if you’re there anyway.
From Debris to Ingot: The Real Math
Smelting is 1:1 — one ancient debris in a furnace or blast furnace (any standard fuel works) produces exactly one netherite scrap [6]. Four netherite scrap plus four gold ingots then combine, shapeless, at a crafting table into one netherite ingot [2]. Note that step: it’s a crafting table, not the smithing table — a surprising number of players assume the whole netherite chain happens at one station.
Here’s the number that gets misquoted most: a complete netherite loadout is 4 armor pieces (helmet, chestplate, leggings, boots) plus 5 tools (sword, pickaxe, axe, shovel, hoe) — 9 items total, not 10. Each item’s smithing-table upgrade consumes exactly one netherite ingot regardless of type [3], so a full kit costs 9 ingots. Working backward: 9 ingots need 36 netherite scrap, which need 36 ancient debris and 36 gold ingots. If you’re planning a full-kit mining trip, that’s your real target — not the rounder-sounding “10” figure a few guides repeat.
The Smithing Table Upgrade, Step by Step
The smithing table has used a fixed 3-slot layout for netherite upgrades since it was added in Java 20w10a for the 1.16 Nether Update [3]: the Netherite Upgrade Smithing Template goes in the left slot, your diamond tool or armor piece in the center, and a netherite ingot on the right. The upgrade costs no XP and preserves the item’s existing durability, enchantments, and custom name exactly [3] — you’re not crafting a fresh item, you’re transforming the one you already have.
The template itself is the actual bottleneck in this whole process, more than the debris is. It generates in exactly one structure: Bastion Remnants. The treasure chest inside every bastion guarantees one; bridge, hoglin stable, and other bastion chest types each carry roughly a 10% chance [4]. Once you’ve secured a single copy, scarcity stops being a problem — duplicate it at a crafting table using 1 existing template, 7 diamonds, and 1 netherrack to produce 2 templates [4][5]. Each template is consumed the moment you use it to upgrade an item [5], so budget diamonds accordingly if you’re planning a full 9-item kit: that’s up to 8 additional templates to duplicate past your first bastion find, or roughly 56 diamonds if you’re not finding extras in loot along the way.
What to Upgrade First
Not every player needs the same 9 items in the same order. Here’s how we’d prioritize by playstyle:
| Player type | Upgrade first | Why |
|---|---|---|
| New player | Chestplate only | Highest toughness return for the least ingot investment — don’t commit 9 ingots’ worth of debris before you’re sure you’ll survive to use them |
| Casual player | Boots, then chestplate | Fire/lava immunity on dropped netherite gear [7] makes boots a cheap survivability upgrade for anyone still doing regular Nether trips |
| Hardcore / optimizer | Full armor set, then sword | 40% knockback resistance on a complete 4-piece set [9] changes PvE combat math more than any single tool swap |
| Completionist | All 9 items, then horse armor | Netherite Horse Armor [10] is the newest netherite item in the game and the easiest one to miss if you stopped tracking updates after 1.20 |
The pickaxe is deliberately last on every list above except the completionist’s. A diamond pickaxe already mines everything in the game, ancient debris included — upgrading it to netherite buys you mining speed, not new access [1]. If you’re weighing where to spend your first few ingots, armor beats tools almost every time, because toughness and knockback resistance protect the run that lets you go get more ingots later.
Netherite vs Diamond — and the New Horse Armor
| Stat | Diamond | Netherite |
|---|---|---|
| Armor toughness (per piece) | +2 | +3 |
| Knockback resistance (per piece) | 0% | 10% |
| Dropped item in lava | Burns and is destroyed | Fire/lava resistant [7] |
The knockback resistance line is the one most players undersell: 10% per piece sounds small until you’re wearing all four and enemies can barely stagger you back mid-fight [9]. Combined with fire immunity on anything you’re carrying, netherite is the difference between a Nether trip where a lava pool is a real threat to your inventory and one where it isn’t.
If you missed it, Mojang added Netherite Horse Armor in Java 1.21.11 “Mounts of Mayhem” on December 9, 2025 (Bedrock 1.21.130) [10]. It’s crafted the same way gear is — template, diamond horse armor, and a netherite ingot at a smithing table — and it’s a real upgrade, not a cosmetic one: 19 armor points and 3 toughness versus diamond horse armor’s 11 and 2, plus 10% knockback resistance that diamond horse armor doesn’t have at all [10]. It’s easy to miss because it’s genuinely new; most netherite guides online were written before it existed. For players chasing the strongest possible loadout, it’s also worth pairing netherite gear with loot from other high-difficulty structures — our Ancient City guide covers the Warden-guarded rewards that round out an end-game kit.
Frequently Asked Questions
Do I need a new smithing template for every single upgrade?
Yes, and this is the real bottleneck in the whole netherite chain — not the debris. Every upgrade consumes its template [5]. The fix is to treat your first bastion trip as a template farm, not a one-time grab: get the guaranteed treasure-chest template, then duplicate it at a crafting table (1 template + 7 diamonds + 1 netherrack = 2 templates) [4] as many times as your diamond supply allows, rather than raiding a new bastion every time you need one more.
Is it faster to mine ancient debris or just loot bastions for scrap?
For a first full kit, mining at Y16 is more reliable. Bastion chests carry netherite scrap at roughly 4.5-21.7% depending on chest type and edition [6] — good odds for a bonus find, bad odds to count on for a specific 36-debris target. Treat bastion scrap as a discount on the mining trip you’re already planning, not a replacement for it.
Why does ancient debris survive TNT when a diamond vein wouldn’t?
Blast resistance, not rarity. Ancient debris sits at 1,200; diamond ore sits at 3 [1][11]. TNT set off near a diamond vein destroys the diamond ore right along with the stone around it. The same TNT next to ancient debris clears the stone and leaves the debris standing — a 400x gap in blast resistance between the two ore types, which is why blast mining is a strategy for one and not the other.
Should I upgrade my pickaxe to netherite first?
Not if you’re optimizing survival odds. A diamond pickaxe already breaks everything in the game, ancient debris included [1] — netherite only makes it faster, it doesn’t unlock anything new. Armor toughness and knockback resistance protect the Nether trips that get you the ingots for everything else, which is why it belongs near the bottom of most players’ upgrade order, not the top.
Sources
- Ancient Debris — Minecraft Wiki
- Obsidian — Minecraft Wiki
- Netherite Ingot — Minecraft Wiki
- Smithing Table — Minecraft Wiki
- Netherite Upgrade — Minecraft Wiki
- Smithing Template — Minecraft Wiki
- Netherite Scrap — Minecraft Wiki
- Netherite (overview) — Minecraft Wiki
- Netherrack — Minecraft Wiki
- Blackstone — Minecraft Wiki
- Basalt — Minecraft Wiki
- Armor — Minecraft Wiki
- Netherite Horse Armor — Minecraft Wiki
- Diamond Ore — Minecraft Wiki
I've been playing video games for over 20 years, spanning everything from early PC titles to modern open-world games. I started Switchblade Gaming to publish the kind of accurate, well-researched guides I always wanted to find — built on primary sources, tested in-game, and kept up to date after patches. I currently focus on Minecraft and Pokémon GO.