Originally Posted by
YCTTSFM
Guessing it will all depend on that, followed by level of curiosity and personal version of SOP held by the screener who views—or views yet fails to attend to—its x-ray image.
What's the reservoir made of? PETE/HDPE water bottles are apparently missed quite often, according to various accounts here.
Golly, I had no idea steam-powered PCs still exist!

Not quite sure but I think it's just normal plastic or some sort of mix. It has a copper base and I know it's supposed to withstand pretty high temperatures. There isn't any water sloshing around or anything like that. It's a completely closed loop system.