Wooden cutting boards need to be kept clean and daily maintenance is usually a good scrub with hot soapy water after using. Do not soak your boards or any other wooden utensils in water or they'll crack and warp. Absolutely no dishwasher use! Some people use a very weak bleach solution or hydrogen peroxide to clean their boards after they've been used for cutting raw meat as a precaution against bacterial contamination. Depending on how often you use your boards, maintenance should be at least every couple months.
Everyday Use - Absolutely NOdishwasher use!
Simply wash your board with your regular dish soap at your sink and with a scrubber brush. Dry with a cloth.
Do you have questions about the differences in wood grains?