Originally Posted by Holice
did you ask the teacher why she says to toss the thread? If I were you I would ask the next time I saw her or the shop owner.
In my 30+ yrs of quilting I have never heard this.
I was not in the class. I was in the store and overheard what the instructor said. Buying new thread for each project didn't make sense to me, but I thought "Hey, she's an instructor so she must know what she's talking about."
I'm happy to know I'm not the only person who uses thread that's several years old.