Bath bomb packaging problem

[Dwilson9]

When I shrink wrap my bath bombs, after a few days. They go soft. I’m drying them 3 days before wrapping them. They stay hard when not shrink wrapped. Can someone please explain to me why this is happening? And a solution? I much like the idea of shrink wrapping my bath bombs

 

[SoapMaking]

When I shrink wrap my bath bombs, after a few days. They go soft. I’m drying them 3 days before wrapping them. They stay hard when not shrink wrapped. Can someone please explain to me why this is happening? And a solution? I much like the idea of shrink wrapping my bath bombs

I’m curious, as I just came about this post. Did you find a fix?