Refreshing Cedar Blocks: A Step-by-Step Guide

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Cedar blocks can be refreshed by sanding them lightly to restore their scent and effectiveness. Start by removing any dust or debris from the blocks with a soft cloth. Then, use fine-grit sandpaper to gently sand the surface of the blocks, focusing on areas that have lost their scent. After sanding, wipe the blocks clean with a damp cloth and allow them to dry completely before using or storing them. This simple process will help revive the natural fragrance of cedar blocks and keep them working effectively in repelling moths and insects.


Cedar blocks are loved for their small size and versatility, as they bring the refreshing scent of natural cedar wood to linen cabinets, closets, suitcases, and other storage spaces. Not only that, but cedar blocks also act as a deterrent to insect larvae that may damage fabrics like wool, linen, and cotton. Over time, however, cedar blocks can accumulate dust and lose their aromatic oils. To protect your fabrics from deterioration, it’s important to know how to quickly refresh cedar blocks. Here’s a step-by-step guide to help you do just that.

Step 1: Lightly Sand the Cedar Blocks

Using 120-grit sandpaper, gently sand all six sides of the cedar block. This will open up the wood’s pores and expose new oil pockets. Make sure to follow the natural grain lines of the cedar block.

Step 2: Sand Until Red

Continue sanding the cedar block until each side turns red. This indicates that fresh cedar oil has been revealed. Be careful not to over-sand; simply sand until the brown layer of wood disappears.

Step 3: Wipe and Dry

Take a wet cloth and thoroughly wipe the entire cedar block. Remove any dust and grit fragments, and then allow the block to dry.

Step 4: Enhance the Aroma

Take a whiff of the cedar block to gauge its scent strength. If the aroma is weak, generously buff natural cedar oil extract onto each side of the block.

Step 5: Remove Excess Oil and Air-Dry

Buff the cedar block one final time to remove any excess oil. Then, place the slightly damp block on wax paper to air-dry. Allow the block to absorb the oil for 24 hours before using it.

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