For a thorough deep cleaning of your LIND DNA placemats and glass mats has Lind DNA developed the DEEP CLEANING SOAP, a liquid soap specially made for cleaning recycled leather products. Simply dilute the soap in a little water and gently wipe the mats with a sponge, allowing the soap to lather. Then remove the foam with a damp cloth. For heavy cleaning, leave the foam on the product for a few minutes and remove with a damp cloth.