I have not tried this myself, so don't know for sure it works, but it was in the latest Quilter's Newsletter and I haven't seen this tip before. It said to use vinegar to remove blue or purple heatset marks.

If it works, it might save a few quilts.

Thank you for sharing this with us :D:D:D

I did try it and it worked fine

thanks for the tip.

What a great tip.

this is a great tip, I have had some of the markers that didn't fade away before

That's good to know.

Thanks for the tip.

Yes, vinegar works.

Do you use white vinegar or apple cider?

White - I'd be afraid apple cider might leave a yellow stain on a light colored fabric.