I love my AeroPress. It makes some of the best coffee ever. But I had to stop. Putting hot water in a plastic cup everyday for coffee? I wish there was a metal version. I’ll still use it once every so many months. But the plastic nature of the contraption has turned me away.
I'm surprised there isn't a premium version available. There's surely a huge market for people willing to spend ~$100 on a non-plastic version.
As you can see at https://aeropressinc.com/use-it-now/evolution-of-aeropress/ , they’ve continued to re-evaluate materials, including testing for contamination while brewing coffee.
You can boil an aeropress at pH 5 for an hour without detecting any leaching. The interesting bit is how it ages—how cracks form, where bacteria might find a home, that sort of thing.