Tube of soda? New York?

Question

My Grandmother is reading a book (based in New York present time) and in it they keep referring to cans of pop/soda as tubes. Or at least thats all we can make of it when they say "I had a tube of it earlier" or something like "I got the tube of that earlier". I've never heard that term before and I wondered if maybe anyone else has. Are they really referring to soda? She swears that in context it has led her to believe it is cans of pop.

Answer 1

ask her for the title and author of the book.  read it.  find out.  then let us know the answer.