Also just found an interesting combination and possible bug with the philosopher stone and cauldron, Thought I needed a log to make herbs for repeating refresh but if you click the stone, it automatically refreshed without consuming an item as long as it was above the cauldron. Don't know if that was intended or represents the true power of alchemy (FMA).
Update now I have a scimitar that gets +1 dmg when a consumable is destroyed next to it and 2 stones for potion recycling and buffing the sword nearly infinite as long as I don't get a poison potion. (Alternatively Scimitar+P.stone+log works too)
Update 2, scimitar has the same bug, just clicking P.stone next to it give +1 dmg without consuming anything. lol