I think cans do react differently. A friend of mine is a very big fan of Coke and he refuses to drink it out of anything but a glass bottle because he claims it tastes 'wrong'.

very interesting, thanks for sharing!
BTW I have read the answer of a doctor on that Leptospirosis thing (rat urine). It's not true, the symptoms are different, not so fast and usual don't end with the death. you sure gotta wash the can from the dirt but it's not so dangerous. You know I had rats, touched them, kissed them and yeah, cleaned their places directly touching their "presents" and I am ok. I know, they were healthy, domestic... Anyway, it's not so hot. Plus, to prevent allergies, we need to be in touch with the dirt

I posted what I thought it was true......Because I have  a best friend who likes  to drink out of soda can....and have itching mouth/lips and maybe  this  was  a good hint ....for drinking out a plastic cup  or  a straw or  a glass.....

i think my best friend  is soooooo sensitive......