Sand your wood cutting boards once a year to get rid of stains & nicks! Just wrap a sheet of 120 grit aluminum oxide "cabinet" paper around a block of wood (which sands more evenly than using the paper alone) and give the board a good sanding. Use a rag (or compressed air, if you have access to some...) to clean the 120 grit particles off and resand your cutting board with a 220 grit sheet of aluminum oxide sandpaper. Once again, clean all the dust and particles from the wood and wash in hot, soapy water.
Once the board has completely dried, rub it with a food-grade mineral oil from the drugstore or hardware store to reseason. Let the oil soak in and repeat, until the wood cannot absorb any more oil!
To purchase sanding sheets, check out our online store at : http://www.abrasiveresource.com/