AlCl3 stuck to Pyrex

I made $\ce{AlCl3 . 6 H2O}$ the easy way, with $\ce{HCl}$ and foil. After filtering and reducing on the stove, I get a nice yellow crystal of contaminated $\ce{AlCl3 . 6 H2O}$. The yellow should be from $\ce{Fe}$ contamination.


The problem: it is stuck insanely hard to my old Pyrex pan and I’m having trouble getting it out. I can re-dissolve it in water, but that’s a step back. Would nonstick work? Any thoughts?


Thanks


