To finish a laser engraved charcuterie board and ensure food safety, follow these steps:

1. Choose Food-Safe Finishes: Select mineral oil, beeswax, or a blend specifically labeled as food-safe. Avoid finishes that contain harmful chemicals.
2. Clean the Board: Start by thoroughly cleaning the board with soap and warm water. Rinse well and allow it to dry completely.
3. Sand the Surface: Lightly sand the engraved areas and the entire board with fine-grit sandpaper to ensure a smooth surface. Remove any dust with a clean cloth.
4. Apply the Finish: Use a food-safe mineral oil or beeswax to generously coat the board. Apply the oil using a soft cloth, ensuring it penetrates the engraved areas.
5. Buff the Board: After applying the oil, let it sit for a few hours or overnight, then buff off any excess with a clean cloth.
6. Repeat as Needed: For optimal protection, repeat the oiling process every few weeks or whenever the board looks dry.
7. Store Properly: Keep the board in a cool, dry place to prevent moisture absorption and warping.

By following these steps, your laser engraved charcuterie board will be safe for food preparation and presentation.