Note: This question might be a little offtopic. Kill it if necessary.
I've always had "THC" outdoor jackets which are knitted sheep wool jackets. However, they stink like a stable. Normally I put them outside for a week and the smell is gone.
This time the smell refuses to leave the jacket. It's been outside for two weeks now and still stinks a little bit.
Is there something to speed up the process of removing the smell? Or something to get rid of the smell immediately?