[hinkley]

Pyrex won't save you from shattering a cylinder in your hand. And this is the 2020's. You won't imagine how dumb companies can be. Check.

If this is the guy:

https://coffeechronicler.com/aeropress-xl-premium/

Then the fact that the inner cylinder is stainless steel means that if the glass shatters, you still have something supporting your hand. The inner cylinder might save you from life-altering lacerations to your hand. Might.

I'm not going to be the one to trust it. I've seen how much pressure people apply to aeropresses, and friends don't let friends push that hard on future shards of glass.