After you have plyed your wool, you need to set the twist. There are several approaches to this. One school of thought says that you wash your yarn and then dry it under tension. This approach is fairly popular with weavers. Another approach says that you wash your yarn and don’t dry it under tension. This approach is more popular with knitters. Yet another approach, promoted by Judith MacKenzie, says, really shock your wool and let it do what it’s going to do. This is done by washing in alternating hot and cold baths.
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