Thanks for asking this. I've just bought a bunch of charms and layer cakes. I was afraid to wash them with all the stuff that already comes off of them. I've washed smaller cuts of fabric (quarter and eighth) and they came out pretty bad so I didn't wash these. I did put them in the mesh bag to wash them and still got alot of thread tangles and balling. I'll just know that I will get the shrink after its washed.