5 (2) The ‘Tea Towel trick’ 4 comments Beryl says: August 3, 2017 at 10:36 pm What type of material is best..? ordinary cotton or a towelling type. Reply Paulene @ Slow Cooker Central says: August 4, 2017 at 1:52 pm You could use either The ones I had made are towling Or I use cotton tea towels Reply Janelle Redding says: February 4, 2019 at 2:51 pm Can you buy these covers and if so where and how much.?? Thanks Janelle Reply Paulene @ Slow Cooker Central says: February 5, 2019 at 9:11 am We have instructions on how to make them here Slow Cooker Covers Reply Comments Cancel reply Your email address will not be published. Required fields are marked *Your Comment *Name * Email * Website Notify me of new posts by email.