Aluminum pressure cookers

Keri

My fiancé and I have an aluminum pressure cooker, the "old school" kind. I can find a picture if anyone needs to see it but my MIL sent my fiancé a text today telling us to stop using it cause it's deathly toxic to our baby (I'm just over 5 weeks).

I'm just wondering if this is true, as I cook with the pressure cooker often and to me it sounds a little exaggerated!

If anyone could shed some light I'd appreciate it! TIA! :)