Wash tea cozies by hand or washing machine using cold water. After washing, re-shape by hand and then lay flat to dry or hang by the loop at the top. When cozy is completely dry, you can give it a quick press (with steam) using your iron. Remove any pilled fibres by hand.
Ta-da.....you should be good to go and have a lovely, refreshened cozy ready to keep your tea warm again. Any questions? Please do not hesitate to contact me.