http://www.quiltingboard.com/picture...o-t219761.html
I couldn't find the picture, but here is the thread. Anyway, I have since washed and dried all flannel. This was my first quilt, fabric from quilt store, I didn't know about prewashing options and teacher didn't say anything about washing. They are three inch squares, 1/4" seam, warm and natural batting. Still going strong. I may have to rethink washing flannel now.