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Borderlands 4

How to Farm and Use Eridium

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Borderlands 4 - How to Use and Farm Eridium

Eridium is used for Moxxi's Big Encore Machine, respeccing Specializations, and transferring Firmware in Borderlands 4. See how to use and farm Eridium in this guide!

List of Contents

How to Use Eridium

Harder Moxxi's Big Encore Machine

Eridium Encore

Eridium can be used to pay the fee of the Weekly Moxxi's Big Encore Machine available in Ultimate Vault Hunter Mode. This machine unlocked after the Ultimate Vault Hunter Mission: Big Encore, and will let you fight harder versions of a boss for more drops than usual. This appears to cost 100 Eridium per run.

How to Farm Bosses

Used for Specialization Respec and Firmware Transfer

Used for Specialization Respec and Firmware Transfer

Eridium is used for endgame features such as respecs for Specializations which are unlocked at the end of the Campaign, and Firmware Transfer Machines unlocked after the Ultimate Vault Hunter Mission: Zane's Firmware.

Specialization respec costs 1,500 Eridium and is done at the same respec machines used for the base skill trees.

List of All Specializations

How to Farm Eridium

Contracts Challenges Replayable Missions

Earn Eridium from Contracts

Get Eridium from Bounties

Contracts are a missions found on contract boards in Safehouses. Similar to side missions, they have set goals you must accomplish to earn rewards but are completely optional to the Campaign.

Along with other rewards, contracts will grant Eridium as a reward. They will be unlocked when you reach your first safehouse, the Abandoned Post at the Coastal Bonescape.

Earn Eridium from Challenges

Get Eridium from Challenges

You can get a good amount of Eridium early game by completing Challenges. Most of them offer Eridium when you complete them, along with EXP and cash! To see the challenges you can complete, head to the Missions menu and select the Challenges tab.

Challenges Guide

Earn Eridium from Replayable Missions

Get Eridium from Challenges

Replayable Missions can also be a renewable source for farming Eridium when needed. Though not all missions will necessarily be short in this case, so you may be able to earn Eridium from doing Contracts or Bounties faster.

List of All Main Missions

Borderlands 4 Related Guides

TIPS & TRICKS

Beginner's Guide to Borderlands 4: Tips and Tricks

Tips and Tricks Guides

Progression Guides
What to Do First Level Cap: What is the Max Level?
How to Farm Bosses How to Level Up Fast
How to Farm and Use Eridium How to Get More SDU Tokens
How to Crush Jamming Device When Do You Get a Vehicle?
How to Unlock More Weapon Slots How to Increase Inventory Capacity
How to Get Stronger Weapons Can You Upgrade Weapons?
Red Chest Farm Location Should You Do Side Quests?
What is Ultimate Vault Hunter? How to Increase UVH Level
Legendary Enhancements Farm How to Unlock UVH 2
How to Get Into Dominion -
General Guides
How to Sell Items How to Respec Skill Tree
Golden Keys Guide All Bank Locations
How to Store and Transfer Items How to Drop Items
How to Claim Deluxe Edition Items How to Fast Travel
Can You Duel? Pearlescent Rarity
Level Scaling Explained How to Summon Vehicle
How to Link 2K Account Weapon Rarity vs Level
Lost Loot Machine Explained Weapons Levels Explained
Weapon Rarity Explained Fishing Guide
What to Spend Money On Movement Guide
Moxxi's Tip Jar Guide: Location and Rewards Should You Save on Golden Keys?
Legendary Vending Machine Locations Should You Wait on Opening Vaults?
Throwing Knife Farm All Secrets, Easter Eggs, and References
How to Farm Firmware How to Transfer Firmware
Settings Guides
List of All Controls Matchmaking Guide
Difficulty Differences and How to Change Can You Change Character?
Best and Recommended Settings Can You Change FOV?
Can You Change POV? Compiling Shaders Fix
How to Save and Recover Lost Saves Is There a Minimap?
How to Clear Shader Cache -
Combat Guides
Death Penalty: What Happens When You Die? Elemental Weaknesses Guide
Incendiary Damage Guide Shock Damage Guide
Cryo Damage Guide Radiation Damage Guide
Corrosive Damage Guide One Shot Exploit

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