Ok.. Can someone answer this question that has been bugging me since my teens. "Silica Gel. Do not eat. Throw away. Desiccant" What are the purpose of those teeny been bag things with the above text printed on the outside that are always left inside new bags? If you have to throw them away, why are left inside bags? Why do you have to chuck them away when you get the bag? Why dont you need to keep them inside forever? Whats the difference between an 'owned' bag and a 'shelf' one? Can someone ease my burden by tellling me the answer?