I was just looking at Laundress yesterday! Thanks for the info!!I use laundress. Done the method described above here w swirling, rinsing and towel rolling, avoid hem w iron. Have done all formats except cashmere. Someday I may need to do cashmere :-0. I no longer use a tea towel when ironing. I just iron straight on the silk, including mousselines. I must say that I have an iron and a plastic basin specifically for my silks. Keeps them pristine so I know nothing will ruin the scarves.
Have only had one vintage 90 scarf run on me. Pink water was scary. I think it might have also been the first time I washed a scarf :-0. Then I started to use color catchers in the basin of water. But I don’t do that any longer because new scarves don’t run imo. Though I would use catchers again if washing a very old scarf.
It really is easy to wash and iron a scarf. Def not necessary to pay others to do it.