1 - I would not Imagine so. I provide the silica packets with antitarnishing strips and have not experienced a difficulty. (Observe: The glass is evident, not blue or pink. It only seems to be blue or pink as the light-weight is reflecting the gasket in a few of the https://physicalgoldownership52727.mybuzzblog.com/16068656/the-definitive-guide-to-physical-bullion