Walnut Oil for bowl making or wood finishing. 8 ounces.... Our Oil is Filtered but not Refined. Refined walnut oil is not a drying oil. Our oil can be used to seal, preserve and beautify unfinished wood products. Used by wood turners, craftspeople and carpenters. Totally Food Safe. 100% Filtered Walnut Oil. Nothing added. Follow directions for outstanding results. Walnut oil is slow drying and curing It will take 2-3 days to fully dry. Allergy Warning - Made from Tree Nuts.