I'm in Oregon (home of the Pendleton Woolen Mills). I've been lucky that I have a lot of Pendleton wool (some I have purchased, but most has been given to me over the years by former Pendleton workers - ya-hooo). I always wash and dry before I cut and sew with it. This makes your wool washable (even my friends from PWM, wash and dry before using), if you want to be able to wash and dry your finished product you will have to do it first. Your wool should be fine if it has been taken care of as you say it was. Good luck