This is PETG, one was left out in about 40% humidity the other was dried to about 20%
this post was submitted on 17 Aug 2025
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^ translates to PETG or TPU
It very often is that the filament is wet.
Only in your mind.
I do dry the TPU I have when I use it, simply because I don't use it much. I've had my spool of TPU for a couple of years now. And I might drag it out a couple of times a year. So, it gets dried.
PETG I dry as needed when it demonstrates the need. But if it shows the need, I do dry it. A few hairs on a finished print don't really bother me much. But I'm not really into printing knickknacks. As long as the part is fit for purpose. Again, if you need to dry your filament to within an inch of it's life every time you use it, you either live in a rain forest or need to do better with calibration.
And the longer I do 3D printing the more I find that if I spend a moment of thought about the materials I might choose and the expected longevity of the item, the more I realize that those things I might have chosen ABS/PETG can just as easily be done PLA without the need for extra effort. And I still get the expected function and longevity I need.