I love cotton thread, it does not have the shine polyester has but I think that's an advantage on linen - it has a more natural look to it. Just make sure it's the right weight - 40, if it's thinner you might have to go over the satin edges a second time. I'd say go ahead!

Linen shirts need a good iron after they have been washed and a hot iron works best. Cotton thread will iron at a higher temperature than poly. The way I iron - (can you hear my husband laugh at this?) it is easy to catch the poly thread and melt it by accident. This will not happen with cotton thread

Hi I have used both. The embroidery thread gives a real nice satin sheen to the embroidery and the cotton thread gives it the old fashion look like the old doilys they used to make. Either one would be fine depends on the look you want. Hope that helps. Suzanne

I prefer cotton thread, it's soft at touch and has a vintage appeal in cutwork or old fashioned embroidery (expecially fine in matching tones). Poly is good anyway with thicker fabrics. Bye.Adriana

Thank you all for your knowledge and helpful comments. Sarah

Thanks for the question, I learned something here. Be sure to post it in projects when you are done so we can see it!

Good question and great answers. Thanks everyone, I learnt something today too. hugs n roses to all, Meganne