Favored for compact size and versatility, cedar blocks infuse linen cabinets, closets, suitcases and other storage spaces with the forest-fresh aroma of natural cedar wood. Cedar blocks also prevent insect larvae from infesting and devouring wool, linen, cotton and many other fabrics. Although cedar blocks maintain a strong scent for years, they accumulate dust buildup which clogs the cedar's small pores. Sunlight and air also cause cedar blocks to eventually stop releasing aromatic oils. Promptly restoring cedar blocks protects your fabrics from deterioration. Fortunately, you can quickly refresh cedar blocks using basic techniques.
Sand all six sides of the cedar block lightly with 120-grit sandpaper to cut the wood's pores and expose new oil pockets. Follow the cedar block's natural grain lines.
Continue lightly sanding the cedar block until each side turns red, indicating fresh cedar oil. Do not over-sand, just sand until the brown layer of wood disappears.
Wipe the entire cedar block with a wet cloth. Remove all dust and grit fragments from the cedar block and allow to dry.
Smell the cedar block to determine how strong its aroma is. Buff in natural cedar oil extract generously onto each side of the cedar block if the aroma is weak.
Buff a final time to remove excess oil. Place the damp cedar block on wax paper to air-dry. Let the cedar block absorb the oil for 24 hours before use.