According to Slow Cooker Central, using a tea towel is essential when cooking certain dishes as it absorbs excess moisture.
“The tea towel is there to absorb condensation and prevent it from dripping into the dish inside. It’s often used when making cakes and bread, where you don’t want them to turn soggy.”

When using a tea towel with a slow cooker, it’s advisable to fold up any excess fabric onto the lid to prevent it from hanging over the hot outer casing of the slow cooker.

