Originally Posted by
janRN
I don't use steam when paper piecing. I have a spray bottle of water and spray my finger, run my wet finger down the seam then press with a dry iron. I also use cheap copy paper and found that if I used steam it caused the distortion you're seeing.
I don't use steam when the paper is still in. I am starting to starch more now a days when I am doing paper piecing. Hopefully, when the paper is removed. your block will be OK !!