I have used plastic shopping bags for years but will be using a higher quality plastic wrap in the future. One of my hides got freezer burn last season and caused hair slippage. The hide was in a freezer for 3 months. I believe the shopping bags would be okay for short term storage.
I will be using extra large zip lock style or even vacuum packing if longer storage time is planned.
Before rolling up the hide... I've swished it back and forth over the snow to clean and same time moisten the hide for better freezing.
