For Stagg EKG, Stagg Stovetop Kettle, Stagg Wooden Handle Kit, and any products having wood handles or lid pulls - both maple & walnut.
Because wood is a natural product it is prone to drying and warping. Wood components that are exposed to high heat and moisture, such as the lid pull and handle, may eventually dry out and crack (like repeatedly putting a cutting board in a dishwasher).
To prevent this, we recommend periodically applying mineral oil to the lid pull & handle once per month - and buffing with a soft cloth. It’s also good practice to do this any time you notice the wood feeling especially dry.