From: dlzc1@cox.net   
      
   Dear Bret Cahill:   
      
   On Thursday, May 12, 2016 at 10:57:26 AM UTC-7, Bret Cahill wrote:   
   ...   
      
   > Either way.  Nothing is easier than adding a little water.   
      
   You dissolve sodium or potassium silicate in water (aka. "water glass").  As   
   it dries, it forms a glass.  This is (I believe) how they treat bagged   
   vegetables, to keep the bag from accepting oxygen from the environment, and   
   keep the greens fresher,    
   longer.   
      
   The bag is heat sealable, can flex with changes in altitude and handling, and   
   is essentially gas-tight.   
      
   David A. Smith   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)