I rip by every fifth thread loop on top and pull on the bottom thread. It works like the old flour bags. (Lol, I guess that shows my age knowing about the bags.) If you are NOT on a bias edge, you can use a white pencil eraser to help grab the threads that remain in the seam. Just gently draw it over the threads and it usually grabs them out of the fabric.
I tried using the ball side to rip the way Geri b says, but, alas, I cut the seam fabric anyway. So, I don't do that.
Last edited by RedGarnet222; 06-07-2018 at 10:24 AM.