How does replenishing Alchemy items like potions work?
Testing this myself (after reading your other question on this subject), and finding some more information on the internet, I can conclude that:
- Regardless of the amount of supplies that are refilled one alcoholic item is used
- Bombs are also replenished
- It appears that oils do not need to be replenished
- All supplies, equipped or in the inventory, will be replenished the same
You can read more about this and other inventory mechanics in this reddit post. I have confirmed the part about replenishing supplies myself by testing in-game.