Corundum Flask

Corundum Flask is a new Utility Flask in Path of Exile: Expedtion. It grants increased stun threshold. You cannot be stunned more than once during this flask effect.

Requires Level 27. Lasts 5 Seconds. Consumes 20 of 50 Charges on use.

  • 30% increased Stun Threshold
  • Cannot be Stunned if you’ve been Stunned during Flask effect

Right click to drink. Can only hold charges while in belt. Refills as you kill monsters.

Corundum Flask Guide

Whenever a player takes damage from a hit, there is a chance the player will be stunned. A stun interrupts whatever that player was doing.

Corundum Flask increases the Stun Threshold for 5 seconds.

The price of Corundum Flask is about an Orb of Alchemy.

 Corundum Flask PoE

How to get Corundum Flask?

The drop level of Corundum Flask is 27. This item has been added to the core drop pool.

  • Upon completing The Silver Locket(Act 7) quest, you are now offered a choice of the following rewards: Diamond Flask, Granite Flask, Jade Flask, Sulphur Flask, Quartz Flask, Aquamarine Flask, or Corundum Flask.
  • Upon completing Safe Passage(Act 10) quest, you are now offered a choice of the following rewards: Divine Life Flask, Divine Mana Flask, Silver Flask, Sulphur Flask, Basalt Flask, Stibnite Flask, Quartz Flask, Aquamarine Flask, or Corundum Flask.

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Corundum Flask Mods

Category Name Lvl. Stats
Prefix Perpetual 3 (20–40)% increased Charge Recovery
Prefix Surgeon's 8 20% chance to gain a Flask Charge when you deal a Critical Strike
Prefix Avenger's 12 Recharges 5 Charges when you take a Critical Strike
Prefix Flagellant's 12 Gain 1 Charge when you are Hit by an Enemy
Prefix Ample 2 +(15–25) to Maximum Charges
Prefix Alchemist's 20 33% reduced Duration
25% increased effect
Prefix Experimenter's 20 (25–30)% increased Duration
Prefix Chemist's 14 (15–20)% reduced Charges used
Suffix of Heat 4 Grants Immunity to Chill for 4 second if used while Chilled
Grants Immunity to Freeze for 4 second if used while Frozen
Suffix of Dousing 6 Grants Immunity to Ignite for 4 second if used while Ignited
Removes all Burning when used
Suffix of Staunching 8 Grants Immunity to Bleeding for 4 second if used while Bleeding
Grants Immunity to Corrupted Blood for 4 seconds if used while affected by Corrupted Blood 
Suffix of Grounding 10 Grants Immunity to Shock for 4 second if used while Shocked
Suffix of Iron Skin 6 (40–60)% increased Armour during Flask effect
Suffix of Reflexes 8 (40–60)% increased Evasion Rating during Flask effect
Suffix of Adrenaline 5 (6–8)% increased Movement Speed during Flask effect
Suffix of Steadiness 1 (40–60)% increased Block and Stun Recovery during Flask effect
Suffix of Resistance 1 (20–30)% additional Elemental Resistances during Flask effect
Suffix of Fending 9 Adds Knockback to Melee Attacks during Flask effect
Suffix of Bloodletting 10 0.4% of Attack Damage Leeched as Life during Flask effect
Suffix of Draining 10 0.4% of Spell Damage Leeched as Energy Shield during Flask effect
Suffix of Acceleration 12 (8–12)% increased Attack Speed during Flask effect
Suffix of Quickening 12 (8–12)% increased Cast Speed during Flask effect
Suffix of Precision 12 (15–25)% increased Accuracy Rating during Flask effect
Suffix of Infliction 12 (20–25)% chance to Freeze, Shock and Ignite during Flask effect
Suffix 12 (15–25)% Chance to avoid being Stunned during Flask Effect
Suffix of Curing 16 Grants Immunity to Poison for 4 second if used while Poisoned
Suffix of Warding 18 Removes Curses on use

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