My main concern was the matches or hand sanitizer chemicals, even though they're not in direct contact with the surface of the bottle.
I highly doubt any chemicals would transfer, and if they did, they'd be such small trace amounts that it wouldn't bother you. It's not like you're storing super-toxic Anthrax in there.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.