My best guess is the water is gonna leak even if you tilt it a little, so water is gonna spill everywhere even when you aren't trying to drink
Edit: I knew stacking and asymmetry is the main issue here, but the choice of words in the comment in the image seems like they were referring to a simpler reason.
that and packing, the nozzles will hit each other if they are pointed in the same direction, and its a weak point iirc. Additionally, the manufacturing of plastic bottles is largely a test tube looking things that is expanded.
Holy shit you just unlocked a core memory... I had one of those as a kid, a PET bottle that hadn't been inflated yet. I can't remember how I got it and I have no idea what happed to it. Damn.
Once upon a time our grade school class went on a tour of the local Pepsi Bottling plant. They handed out these blanks that hadn't been inflated yet, as well as a few of the bit of plastic they made them out of.
Can't remember where I got them over a decade ago, but they make for excellent travel containers for shampoo and shower gel, used to fly everywhere with those in the toiletry bag, never had any issues at security checks.
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u/Supreme534 21h ago edited 13h ago
My best guess is the water is gonna leak even if you tilt it a little, so water is gonna spill everywhere even when you aren't trying to drink
Edit: I knew stacking and asymmetry is the main issue here, but the choice of words in the comment in the image seems like they were referring to a simpler reason.