How to Dupe Netherite Upgrades in Minecraft 1.21 (2025 Update)

If you’ve been grinding Minecraft’s Nether dimension, you know how rare Netherite upgrade templates are — and why so many players wonder how to dupe Netherite upgrades. These elusive items, introduced with the Smithing Template system, are essential for turning diamond gear into Netherite. However, finding enough of them can take hours of raiding Bastion Remnants. This guide explores updated duplication methods, legitimate alternatives, crafting strategies, and the safest ways to experiment with how to dupe Netherite upgrades in 2025.

Understanding Netherite Upgrade Templates

To understand how to dupe Netherite upgrades, it helps to know their function.
The Netherite Upgrade Template is a Smithing Template required for upgrading diamond armor and tools into Netherite versions. You’ll find these templates hidden deep within Bastion Remnants, specifically in treasure room chests guarded by Piglin Brutes.

Each Bastion can contain 1 to 2 templates, but they’re far from guaranteed. Without one, even a pile of Netherite Ingots can’t help you upgrade your gear — which is why players search for ways to dupe Netherite upgrades to save time or resources.

Why Duplicating Netherite Upgrades Became Popular

The demand for Netherite upgrade duplication skyrocketed after Mojang introduced the new crafting system. Previously, upgrading was straightforward — but now, templates are mandatory.

Here’s why players want to learn how to dupe Netherite upgrades:

1. Extreme Rarity: Bastion treasure rooms are rare and dangerous.

2. Resource Costs: Crafting duplicates consumes diamonds.

3. Efficiency: Duplicating saves countless exploration hours.

4. Creative Testing: Builders and modders often use dupes for experiments.

While duplicating can seem like a shortcut, Minecraft’s updates in 1.21 have made most old duplication glitches obsolete — but there are still safe, educational, and legitimate ways to achieve the same results.

The Myth and Reality of Duplication in Minecraft

Players searching for how to dupe Netherite upgrades often come across hundreds of “working dupe glitch” videos. The truth is, many of these are version-specific, outdated, or completely fake.

Duplication exploits in Minecraft rely on timing inconsistencies between world saving, inventory management, and block updates. Mojang continuously patches these bugs to protect world integrity. So while older methods once worked, they’re rarely reliable in modern versions.

Still, learning about these techniques can help you understand how Minecraft’s data structure works — as long as you test them safely.

Educational Duplication Methods (For Single-Player Testing Only)

Below are educational examples of how item duplication once worked in previous Minecraft versions. These are not guaranteed in the current game, but they help explain what players mean when they search how to dupe Netherite upgrades.

1. Save-and-Quit Duplication Timing

This classic dupe involved timing Minecraft’s save system. Players would:

1. Put the Netherite upgrade into a chest.

2. Wait for the autosave trigger.

3. Remove the item and force-quit before the save finishes.

4. Reload the world — both the chest and inventory contained the template.

This worked in early 1.18–1.19 versions but is no longer reliable after 1.20 due to improved world state synchronization.

2. Hopper–Dispenser Glitch (Legacy Technique)

Another old trick used Redstone components like hoppers, dispensers, and droppers. By timing power pulses while changing chunk loading zones, players could cause Minecraft to duplicate an item’s data value temporarily.

Although you might find old videos showing this as a method for how to dupe Netherite upgrades, it was completely patched in modern builds.

3. Command-Based Duplication (Safe and Legal)

The most efficient and legitimate way to duplicate Netherite upgrades in any world is through commands.

If cheats are enabled, use:

This instantly gives 64 Netherite Upgrade Templates to the nearest player. It’s perfect for map testing, creative building, or experimenting with full Netherite sets.

Unlike glitching methods, this approach is safe and won’t corrupt your world.

Mojang’s Official Duplication Method — Crafting

Here’s a secret many players forget: Minecraft already includes a legitimate way to duplicate Netherite upgrades.

Once you find your first template, you can craft copies.

Recipe for Duplicating Netherite Upgrade Templates:

• 1 Netherite Upgrade Template

• 7 Diamonds

• 1 Netherrack

This official recipe is Mojang’s approved version of how to dupe Netherite upgrades. It costs resources but allows infinite replication without risks or exploits.

If you’re running short on diamonds, mine deep at Y-level -58 or trade with villagers for diamond gear, then smelt or grindstone it for resources.

Step-by-Step Crafting Guide

Let’s go through the safe, step-by-step process for duplicating Netherite upgrades legally:

1. Find at least one Netherite Upgrade Template

   • Explore Bastion Remnants in the Nether, focusing on treasure rooms.

2. Collect resources

   • You’ll need 7 diamonds and 1 Netherrack per copy.

3. Use a crafting table

   • Place the template in the center, diamonds around the edges, and Netherrack at the bottom.

4. Craft multiple copies

   • Repeat the process until you have enough templates to upgrade all your tools and armor.

This crafting process is safe, patch-proof, and recognized by Mojang as part of the intended gameplay system.

Avoiding Duplication Scams and Unsafe Mods

If you’ve searched how to dupe Netherite upgrades, you’ve probably seen shady download links or “instant dupe mod” claims. Be cautious — many of these contain malware or corrupted game files.

To stay safe:

• Only use trusted mod sites like CurseForge or Modrinth.

• Avoid downloading .jar files from YouTube comments or random websites.

• Always back up your world before testing new mods or data packs.

Remember, Mojang never endorses third-party duping mods. It’s better to use creative commands or the official recipe.

Minecraft 1.21 Update and Duplication Patches

With Minecraft 1.21, Mojang introduced deeper checks to world data saving, fixing nearly every duplication bug discovered in 1.20 and before.

Here’s what’s new that affects how to dupe Netherite upgrades:

• Improved chunk validation: Prevents multi-load inventory conflicts.

• Redstone rewrite: Stops hopper/dispenser desyncs.

• Data safety locks: Reduces rollback timing issues.

In short, real “dupe glitches” are nearly impossible now. Your best option is either crafting or using admin commands.

Efficient Netherite Upgrade Farming

Even without duping, there are still efficient strategies to gather templates faster.

1. Explore Multiple Bastions

Each Nether biome type can generate different Bastions. Target treasure bastions, which have the highest chance of Netherite templates.

2. Use Fire Resistance and Ender Pearls

Fire Resistance Potions let you swim in lava to escape Piglins quickly. Ender Pearls provide emergency teleportation out of dangerous zones.

3. Raid With Friends

If you’re playing on a multiplayer server, coordinate your raids. Each player can loot separate Bastions to maximize total template yield.

These strategies are ideal for players who want results without exploiting glitches.

Creative Mode Experimentation

If your main goal is testing or building, Creative Mode is your best playground. It’s the ultimate safe environment to experiment with how to dupe Netherite upgrades — no bans, no bugs, no crashes.

Here’s how:

1. Create a backup of your survival world.

2. Enable LAN and turn cheats ON.

3. Switch to creative mode: /gamemode creative.

4. Duplicate items freely or use the middle-click duplication tool.

5. Return to survival once finished.

This method allows unlimited experimentation while keeping your original world intact.

Using Data Packs and Admin Tools

For server owners or mod developers, data packs and admin plugins are helpful alternatives to manual duplication.

Examples include:

• EssentialsX (Spigot) – Lets admins spawn or clone items.

• Item Editor Mods – Allow fine-tuned creation of items with NBT data.

• Custom Command Data Packs – Automatically generate templates on player join.

These tools make managing server economies easier and prevent exploit abuse while still giving flexibility.

Ethics of Duping in Minecraft

Duping sparks debates within the Minecraft community. Some see it as cheating; others view it as harmless experimentation.

In single-player worlds, experimenting with how to dupe Netherite upgrades is entirely up to you. It can speed up building projects or let you explore game logic.

However, in multiplayer servers, duplication ruins the balance. Many admins permanently ban players who use item duplication because it destroys server economies.

The best approach is moderation — enjoy experimentation privately, but respect community rules publicly.

Common Myths About Duping

1. “Duping is permanent.”
   – False. Most duped items vanish after world reloads or updates.

2. “Every version has a working dupe glitch.”
   – False. Mojang aggressively patches exploits every update.

3. “Mods are the only way to dupe.”
   – Partially true; only safe, reputable mods or commands reliably work.

4. “You can’t get banned for duping.”
   – False on servers. Many communities actively monitor for duplication activity.

Final Verdict — Should You Dupe Netherite Upgrades?

So, should you actually do it?
If you play single-player and want to experiment, learning how to dupe Netherite upgrades can be a fun, educational experience. But if you’re on a survival server or care about challenge, it’s best to use Mojang’s official crafting duplication method.