We find out if a bag made specifically for soaking chopping boards is actually useful. We’re meant to disinfect chopping boards?” then we would like to introduce you to…▼ … the Chopping Board Sanitising Bag. The idea is simple: put your chopping board inside, then add water and detergent, or diluted chlorine-based kitchen bleach, which is commonly used in Japan to disinfect chopping boards. Starting with the pros, the biggest advantage is that you can soak both sides of the chopping board, as well as the edges, evenly in one go.