It is a long time since I have made a tea cosy, but I think I am getting better at them:

This one was requested by my daughter to match the colour scheme in her kitchen. It’s made in Drops Muskat Sunflower (84), Light yellow (07), Bordeaux (41), Light mint (20) and Moss green (90) on a 4.5 mm hook. I used a paper pattern based on her actual teapot and made a chain as long as the top edge, increased at the two ends until the width was right, than carried on with no increases until I had the height I needed. The whole thing is made in (UK) half treble crochet in the round – so there are no seams or jaggy colour changes.

I lined this one with Insul Bright: nothing fancy – just two flat pieces sewn together with blanket stitch and then slip-stitched to the crochet edge. It does a really good job of keeping the tea warm, and the colours meet with her approval!