When it comes to wooden decorative coasters, the natural beauty of the wood grain can be a stunning focal point. To keep these coasters looking their best, it is essential to clean them regularly. A simple solution of mild soap and warm water is often sufficient. Use a soft cloth to gently wipe the surface, avoiding excessive moisture that could warp the wood. After cleaning, allow the coasters to air dry completely before using them again. To protect the wood from stains and scratches, consider applying a food-safe mineral oil periodically. This treatment not only enhances the wood's natural luster but also provides a barrier against moisture.