Estus Flask | Dark Souls

Estus Flask is a Consumable in Dark Souls. The Estus Flask is a reusable item that replenishes health in Dark Souls. Players can acquire Estus Flasks at Bonfires, which allow for HP recovery while exploring. Resting at a Bonfire will restore your supply of Estus Flasks, up to the limit of that particular Bonfire. By default, a normal Bonfire will restore 5 uses of Estus. However, by using the "Kindle" action at a Bonfire and spending one Humanity point, the number of Estus uses can be increased to 10 for that specific Bonfire. Bonfires attended by a Fire Keeper are already kindled and provide 10 flasks. Once the player acquires the Rite of Kindling, Bonfires can be further kindled to provide 15 and eventually 20 Estus uses. Resting at a Bonfire will always grant the maximum number of Estus uses for that Bonfire. Additionally, drinking from an Estus Flask not only heals the player but also heals any summoned co-op players, though this effect does not extend to summoned NPCs. Consumable Items grant various effects such as restorative properties for recovering HP, removing certain negative status effects, applying temporary buffs and debuffs, as well as activating various actions and effects.

The Undead treasure these dull green flasks.
Fill with Estus at Bonfire. Fills HP.
The Estus Flasks are linked to the Fire Keepers. The Dark Tales also make reference:

An emerald flask, from the Keeper's soul. She lives to protect the flame, and dies to protect it further

Estus Flask Usage in Dark Souls and Dark Souls Remastered

• Reusable item that replenishes health. Acquire Estus at Bonfires for HP recovery in the field.
• Resting at Bonfires will recover your supply of Estus, up to the limit of that particular fire.
• The starting number of uses you recover from any normal Bonfire is 5.
• Use"Kindle" at a Bonfire, and spend one Humanity point, to increase the amount to 10 for that particular fire.
• The Bonfires with a Fire Keeper present are kindled by default, providing 10 flasks.
• After acquiring the Rite of Kindling the bonfires can be kindled to 15 and then to 20 Estus uses.
• Resting will always provide you with the maximum amount of Estus for that Bonfire.
• Drinking Estus will also heal summoned co-op players. This does not apply to summoned NPCs.
• Other online players Kindling their bonfires in the same area can grant you a bonus Estus use.
• If you have 20 full charges in your bottle already, the number of charges will not increase further.
• Drops from Oscar of Astora. (Guaranteed - Northern Undead Asylum and Northern Undead Asylum Revisit)
• Chest behind Frampt's Location in Firelink Shrine (If not picked up from Oscar after NG0).

Estus Flask Dark Souls and Dark Souls Remastered Upgrade

• The Estus Flask can be upgraded with a Fire Keeper Soul, up to +7, to replenish more HP with each charge.
• To upgrade it, give Fire Keeper Souls to one of the three known Fire Keepers: Anastacia, the mute girl below Firelink Shrine, The Fair Lady, who resides in Quelaag's Domain, beyond the boss room, and behind an illusionary wall, and the Darkmoon Knightess, leaning against a wall in the room containing the first bonfire in Anor Londo.

Estus Flask Dark Souls and Dark Souls Remastered Location

• Video Location Timestamp 1:52

Estus Flask Upgrade Table in Dark Souls and Dark Souls Remastered