Why am I doing this?
I always wash my fabric before adding it to my stash. The other day I thought "Why do I wash the fabric & not the batting?" I know prewashing helps with fabrics that will bleed - reds etc and if the fabric is going to shrink it will do so before you cut it. The finished quilts still get the crinkled look when laundered because the batting shrinks a smidge so why bother washing fabric unless there will be a bleeding issue?