Cute little game! Once I figured out how everything worked, I mostly managed to be successful. I like that the cauldron doesn't reset, that is a really interesting touch that sets this game apart from the other potion brewers. You really want to aim for enough ingredients to make the type of potion you need but not so much that you can't change the brew for the next potion order. Very cool.
I think a game reset button would be good to add, as I had to restart the game due to lack of money.
The Strength potion kept getting me, I couldn't figure out how to make my existing brew turn to strength. When I finally did figure it out....I had no money for the bottle. Had to laugh out loud at that, well done.
Great job!