Batiks are made in Bali, out in the sunshine. When you find crusty bits on a batik it's bird poop. I was a manager at JoAnn a few years ago and every once in awhile I would find yellow crusty bits on a batik. But I've found the same crusty yellow bits on LQS fabrics as well, so it's not just JoAnn fabrics. Fabrics are filthy, my hands would be gray at the end of a shift. Yes, you want to wash ALL fabric when it comes into your house. You never know where it's been.
I sure hope they do something to fabric bolts before they enter the country. Some of the insects found in other countries are lethal!
Thank you for the idea to put precuts in lingerie bags, I hadn't thought of that! I bought some Moda Double Chocolate charms just last night, so I'll throw them in the wash today.