freshen up!
Wool doesn’t need washing too often; it has antimicrobial properties which makes it fairly odour-resistant. Hanging your woollens out for a few hours usually does the trick. You should really only wash when absolutely necessary. I suggest you wash them at the beginning or end of the season.
follow the rules
In general I recommend to wash wool on a low temperature. Before you start
washing, check the label of the garment for special instructions.