What’s the Best Yarn for Knitting Tea Cosies? A Designer’s Guide to Fibre, Function, and Flair

When you’re starting a new tea cosy knitting project, one of the first questions that pops up is: What’s the best yarn for knitting tea cosies? It’s a deceptively simple question with lots of angles to explore, because the 'best' yarn depends on what you want your tea cosy to do.