Originally Posted by
bearisgray
I would rewash it and dry it in a dryer until "almost" dry.
Then iron it with the grain (lengthwise) instead of edge to edge.
The only unwashed fabric I ever had shrink after it sewn into a block was a fabric from that company. I don't how know it snuck through w/o washing, but when I steamed the block, it shrunk. Wash, dry and repress. I think it wil flatten out.