I wash all of my Hermes scarves the following way and have NEVER (touch wood) had any issues!
Infact, they get softer and stay vibrant.
Wash in the bathroom basin using body temperature water. Dissolve a small drop of the gentle detergent into the water first and also use a "Color Catcher" just in case. If there are any stains I use the gentle soap blocks to rub the area and gently massage the stain away.
Spend a few minutes gently swirling the water. If it gets quite dirty, change over the water and repeat.
When you are happy that it is clean (remember that the WATER does the cleaning, not the soap!) you can rinse the scarf a few times in water (body temp).
When finished I gently roll the scarf in a beach towel and dry it flat in the shade.
When it is 90% dry I then gently iron it (I don't use steam) on the coolest setting, with a clean cotton tea towel between the iron and the scarf. As it is still slightly damp, this is sufficient to "press" the scarf without the super hot steam.
PM me if you have any questions!
I am located in Australia and purchased the "Color Catchers" from USA
Amazon and the soap and detergent from an Australian producer.
ScarfBloke.
