[Pilsner]

It sounds to me like if you just treat it like a radiator on a car that’s been running, and don’t open the thing while it’s under pressure you’ll be just fine.

A simile marred only by the fact that the thermos bottles in question don’t give warning of the danger by either circumstance, or by being hot to the touch.

But you have done a fine job of expressing the “This has never happened to me, so I find it inconceivable that it could happen at all. LOL!” viewpoint.

Buy a soda in a plastic bottle sometime, and look at the threads on the cap. There are slots in threads to relieve pressure when you remove the cap, which is why people aren’t blinded by soda bottles every day.

[KarlInOhio]

Buy a soda in a plastic bottle sometime, and look at the threads on the cap. There are slots in threads to relieve pressure when you remove the cap, which is why people aren’t blinded by soda bottles every day.

I had thought those were just to make injection molding easier. I'll chalk that up as my thing to learn today.

[HKMk23]

I don’t doubt it’s happening, but — good gravy — is not like we’re dealing with advanced technology, here. How can people be so simple as to get ambushed by their own thermos?

What a crazy story...