I would look at your batting package and see what it recommends for the wool batting. I'm not familiar with wool batts so don't know how washable it may be. Since I use W&N (cotton), I toss mine in the washer, usually perm. press cycle, in warm water. Then toss in the dryer, again perm press cycle, until it's dry. I have found that if the quilt is square when it's completed there's no need to block. Might want to use a 'baby' detergent since it is for a baby but otherwise I just use my regular laundry detergent.