Potion station
Fermentation Barrel Guide
Quick answer
The Fermentation Barrel upgrades Tier 3 potions into more powerful Tier 4 versions. It remains relevant after direct-healing potions were removed because stat potions continue to exist.
What the barrel does
The station is an upgrade step, not a replacement for every potion recipe. Bring an eligible Tier 3 potion to the barrel to progress it to Tier 4. Exact eligible names and ingredient costs should be verified individually before recipe pages enter the sitemap.
Health-rework context
Update 0.12 moved direct healing toward food and fish, but it did not remove stat potions. The barrel therefore supports preparation buffs rather than rebuilding the old healing-potion loop.