Minimise food contamination: Naturally occurring bacteria in raw meats and vegetables can cross-contaminate other foods if the same cutting board is used without proper sanitation. Using colour coded boards for set food types minimises the danger of food poisoning by cross-contamination. Ultra-Fresh Anti-bacterial protection. For added protection this product has been treated with Ultra-Fresh Anti-bacterial Protection. Independent tests by Thomson Research Associated Inc. have shown samples of Ultra-Fresh treated boards to actively inhibit the growth of harmful bacteria causes food poisoning, such as Salmonella and Listeria sp.