Solid Oak & Solid Smoked Oak: Clean often and gently with a soft and dry cloth according to the grain pattern. Clean periodically with a damp cloth. For long-term care, it is recommended that the table top is treated 2-3 times a year with special Oak wood oil on both the top and bottom of the table top, which helps to make the wood resistant to stains and liquids. The wood must not be exposed to excessive moisture, heat or direct sunlight.