Originally Posted by
cmierley
I just learned that steaming could shrink your fabric a little. Teacher recommended no steam. Blocks will come out more accurate. With steam your blocks could be off a little. Once your fabric gets wet it could shrink some. She never steams and her blocks stay accurate.
Well I
always steam and my blocks stay accurate too.

Just one more benefit of prewashing fabrics, no additional shrinkage worries from steam pressing. I never use starch or Best Press or anything other than water, via steam or spray, on fabric.