Does it matter if cs is stored in plastic containers ? One cs website says 
cs must be stored in glass because plastic cannot preserve the cs in liquid 
suspension for any length of time. The cs I make with my silver puppy seems 
stable and clear. If I decide to sell the cs should I put an expiration date on 
it ? Any other things I should know if I want to sell cs ?
  Thanks
  Steve 

  No. it doesn`t. I keep mine in a hard plastic water bottle, and it works fine.
  Why sell it? Give the information away and you`ll feel much better...
  Marshalee