Cool game! I really like the idea of mixing and brewing potions.
The art style and sprites are awesome, the sound is nice, and the gameplay idea is also fine, although there are some annoyance that if fixed would make this a wonderful little game.
It took me 3 or 4 tries to understand how the game works not because I could not figure out how the controls work. I knew what I had to mix and how but not how to do it. Then I found out that the fire has to be under the station to even drop an incredient in AND when you drop the incredient you have to click it in the inventory on the left side, hold the mouse button and move the incredient on top of the station sprite. What I tried was letting it drop from above the station but this did not work at all.
After that it went pretty smooth until I tried to brew my third potion, I think it was red + blue, but I added the stuff first and then the red which led to a wrong ? potion and not point. This makes no sense, the order should really not be important at this point.
Wonderful entry nonetheless. Great work!