What are the best practices for selecting and applying a food grade sealer for wood surfaces?

When selecting a food grade sealer for wood surfaces, it is important to choose a product that is specifically labeled as safe for contact with food. Look for sealers that are non-toxic and free of harmful chemicals. Before applying the sealer, make sure the wood surface is clean and dry. Apply the sealer evenly using a brush or cloth, following the manufacturer's instructions for drying time and number of coats. Allow the sealer to fully cure before using the surface for food preparation.