We often get questions from customers asking how to stop cross-contamination when using our personalized cutting boards. There is no short answer to this question. It's all in the cleanliness of not only your cutting board but everything it touches.
Not everyone is used to using a wood cutting board so a little education is usually in order. Since our cutting boards are wood and you can't put a wood cutting board in the dishwasher without it falling apart one would come to the conclusion that a wooden cutting board is a harbinger of bacteria. This is false. Wooden cutting boards, when cleaned properly (keep reading), can be safe without putting them in the dishwasher. My entire life has revolved around using wood to cut on and eat off of and I have never gotten sick from bacteria living on a wood cutting board or plate. There have been some studies that show bacteria will soak into the wood and the wood fibers will suffocate and kill them.
There is a lot of information spread out over many sites about how to prevent cross-contamination while using cutting boards. I've done the research for you and break down what works and what is myth.