Talk:Estus Flask (Dark Souls)/@comment-174.255.5.43-20190322210137/@comment-97.35.129.119-20200109200137

Depends on what you want to upgrade. If you want to upgrade the amount of charges in an estus flask, strengthen the bonfire with humanity up to 3 times for a maximum of 20 charges. To increase the potency of the healing effect, you need to see a fire keeper and offer a fire keeper soul. There is no other way to do this process so yes, you do need the fire keepers to upgrade estus.