As I said in my previous post above:wouldn't the bad thing be that your aligners are stained with food and beverage? I'm assuming you drink with them in too right?
It's now 12 perfectly clear aligners! The ligatures on my fixed braces on the bottom stain with red wine, tea, curry and the like, but the aligners never do.The aligner does not stain, even if I eat curry and drink red wine. I have 11 perfectly clear used aligners to prove that!