From: rmowery42@charter.net   
      
   In article , CK1@nospam.com says...   
   >   
   > Just checked my kitchen cupboard, tins of fruit, carrots, soup, and   
   spaghetti, all steel.  I'm guessing it's because aluminium is poisonous, one   
   of the reasons I have a steel scuba tank.   
   >   
   >   
      
   My thinking is that steel  is less expensive than aluminum.  I also   
   think that some things may attack the aluminum and steel differently.   
      
   One thing you will notice is there are very few beer or any other   
   carbonated drinks outside of the soft drinks that are in the plastic   
   containers.  Reason it that the plastic is the crbonation will penetrate   
   the containers and the beer will go 'flat'.   Look at all the soft drink   
   2 and 3 liter bottles on the store shelvs  and you will see that some   
   seem to have more in than others.  The ones that seem to have the lesser   
   ammount in them are the fresher ones.  Reason is the carbonation pushes   
   the sides out and the level appears to drop.  As the carbonation goes   
   out the sides come back in and pushes the level up.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)