Butcher-block counters are possibly the most convenient, and attractive tools in the kitchen. However, they demand a specific type of cleaning regime. Boelter sells John Boos high food-grade mineral oil, guaranteed to maintain the quality of butcher-block counters and cutting boards.  This oil is thinner than Boos Block Board Cream. It easily absorbs and penetrates deeply into the grain of the wood to help protect and revitalize wood fibers.