I usually do not wash them or anything, but it is totally up to you. I trim the wss as close to the design as I can and I will sometimes blot it with a washcloth and hot water. What little bit shows I explain that it will dissolve when washed. I am not at fault if they do not follow the care instructions for washing garments that may shrink or bleed.

I never wash towels before embroidering

I do not wash them either

i dont wash my towels before i embroider them

I never do.