Originally Posted by pjaco
I lost my Mother alittle over 3 years ago and was left with lots of mixed thread...LOTS. Not high quality thread, well some are coats & clark. Not sure what to do with it. Been using some in the bobbin. Trying not to gross out my new machine...
Here is how to test out your thread to see if it has gone rotten. cut an 18 length and twist the ends around your index fingers a couple of times so you can get some tension on the thread. Pull your fingers apart so you can get a taught line of thread between them. Give it a couple good tugs, to "pop" the thread. If it breaks, don't use it, if not then you are probably good to go.
P.S. Coats and Clark is a good cotton wrapped thread and will sew up fine. You don't need specialty thread for everything. This from a woman who has a wall of threads....oye ve!