I would really like any evidence for it.
You're overthinking this. The largest determining factor should be according to potato/napkin math should be dipole-moment similarity between proposed solvent/solute pairs. For Msr. Mjäll's theory to be correct, pthalates would have to be present in the plastic at concerning levels, the pthalates would have to be improperly bound in the plastic, and the MDMA would have to have a dramaticly better pthalate affinity (e.g. closer dipole moment) moment than the plastic.
We would next need to accept that transpiration takes place so that the plastic sitting underneath your little deemcake drips it's pthalate UPWARDS into your deem.
Also it would be necessary that the pthalate, although improperly bound in your container does not leach out into the air, the lining of your freezer, or your hand (which contains a solute rich environment in the forms of saltwater AND various oils) has not already leached the pthalate out.
Meanwhile solids are not great at dissolving things.
Also pthalate would have to have significant mobility within the plastic in order to run like a pack of angry Mongols towards your DMT in an attempt to invade it.
Please don't microwave plastic.
Have you considered putting your deems into a paper bag, and putting that in the plastic? Or maybe you can pile them in a little shot glass in the plastic container so that they don't have to touch the plastic!
If you're worried about health, here is my toxins checklist:
- Red meat
- Sun exposure
- unprotected sex
- alcohol
- tobacco
- stress
- heavy metals
- lethargy
Edit: I presume you're smoking your elf crystals? I'll just leave this here: