I use a dry cleaner. One closest to home. Even though wool has come a long way its too expensive for me to take a chance and soak it in water. I just tell them to keep it as scent free as possible then i lightly spray it when i get it home with some scent killer. I have not experienced it yet but have heard stories of wool shrinking in half with a normal washer.
The best way to wash merino is to use a phosphate/fragrance free product like Tide Free or a hunting specific detergent, wash on cool and hang to dry. You can put all of our stuff in the dryer, with the exception of the pants, but just like a pair of jeans it will last a lot longer if you keep it out of the dryer. Merino dries very quickly. thanks-Kenton... Hardstalk, cool avitar
Good to see FL on here. I just wash and dry all my stuff, wash cold and dry low heat. Haven't had an issue yet but it is all FL. I did have 1 piece of core4 that shrunk like no other after the first wash.
I use our regular laundry detergent, and wash ours on delicate, and in cold water inside a mesh bag. I will line or machine dry according to the specific manufacturers instructions, for some reason some companies (smartwool) say you can tumble dry low, while most others (icebreaker, stoic, I/o bio, and minus 33) recommend line drying. The couple of times I goofed up and machine dried our merino I didn't notice any problems, but I suspect line drying is better for the overall life of the products.
I have never worried about the scent too much, as merino is excellent at remaining scent free. I have noticed when my merino clothes get damp or wet in the field from either sweat or rain, that I start to smell a little like a wet sheep