Originally Posted by Ramona Byrd
I want to know too. I generally use what I have on hand, but I'm afraid to use the huge amount an older friend gave me..it's all wound on old wooden spools. Looks nice but I wonder about how strong it is.
To see if your old thread has weakened, take about an 18" piece of it, wrap it around your hands and pull...see just how much tension it takes to break it. Then try the same test with some of your new thread and see if there is a difference!