Shelbie

I've used a lot of old thread with no problems. I test them (pull to see if it breaks of snaps easily) and even pretty old thread seems to hold up well. I just finished using orange thread from my teenage years to stitch my GD's pumpkin Hallowe'en costume as it was the only orange I had and a brand new spool although forty years old! If I'm concerned that it isn't strong enough, I use it for basting.