Is it OK to leave mint set coins in the original cellophane?

I picked up a 1996-W dime in original mint cello. Is mint cello from that time inert? I've heard of mint cello damaging coins. Should I put it in a 2x2 or leave it where it is?
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Comments
Michael
softer. The packaging changed to a thicker and more brittle material in 1985 and may
be just two sheets now. It might be noted that '84-D cents are usually spotted and this
is much less of a problem for later ones.
You may not be able to tell for many years if mint packaging is secure or not or like
1975 Japanese mint sets the packaging might start breaking down almost immediately.