I gleaned this nugget from Kristof and Matt as they discussed the intricacies of how much brew a witch makes and how much they actually use. At the end of it they just end up with so much extra spell it’s ludicrous. What do they do, put it into ice cream containers and chuck it in the freezer?

↓ Transcript
Now drink a single drop of my magic potion and the power of flight shall be yours.

Did I stutter?

No, but what do you do with the rest of the cauldron?

Oh, well, yeah I just tip it out. I’m not used to brewing for one.