Haha, this is like third puzzle game I played today. Haha, my brain is toast. Haha.
That being said, this is probably the best depiction of potions in a game I've ever seen. I confess I did not read through the tutorial and ended up bulldozing through it trial and error. I managed to get the hang of it and wow, this is incredible. First check the colors (great pixel art btw) figure out if you need it chopped, or pestle, then check if it'll increase the temperature or decrease it too much. I think one of them still killed me when I was around the center so I had to trial and error it quite a bit, and ended up having to prioritize the crazy changes first.
The art is great,music is lovely and ambience is great. Gameplay was very very hard but I got to the end. I think it'd be nice to have an ability to speed up the time, perhaps a spacebar key that would speed things up so it'd get colder or hotter faster?