It occurred to me while I was rolling a ball of yarn – is wool “clean?” Could it possibly be contaminated by salmonella or other gross things? I, um, have obsessive-compulsive disorder (not the funny “I’m so OCD!” kind, but the actual disorder), so my mind tends to run away with these things. Anyway, I felt like my lovely new Palette wool from Knit Picks (I bought the ornament kit and was so excited to start working on an ornament) was “dirty” in some way.
I don’t know how wool yarn is made, but I thought some of you might know about the process.
Having taken up spinning this summer I can second what zkimom said. The wool gets immersed in hot soapy water at several stages along the way to becoming yarn.
I just this past weekend kettle dyed enough hand spun yarn to make a cardigan and it spent 30 minutes simmering away and then sat in the hot water until it cooled to room temp. before I pulled it out and rinsed it.