Ever wonder if your wooden cooking spoons are safe to use after a long period of time? Could they be harboring foodborne germs and bacteria in small scratches on the surface? The good news: Wood is naturally anti-microbial. In nature, trees fight infection, so the properties of wood will also inhibit the growth of mold and bacteria. But to keep them healthy and working for you, always hand wash wooden spoons with hot water and dish soap. While they are dishwasher-safe, many modern dishwashers will actually over dry them and cause the wood to split and fall apart.