I dunk all my wooden kitchen utensils and boards in baby steriliser (my best friend) and let them dry naturally. I thought if kept clean some wood was naturally antibacterial although I forget which. I know that tea towels can harbour germs spreading more back on to things as you dry them. Again i let things dry naturally if at all possible and only use the tea towel for one session then it's in the wash. I also use a spray bottle of diluted baby sterilising fluid to clean the piggy cage and one with a drop of washing up liquid added to it for cleaning the kitchen. It's much cheaper than fancy sprays and does the job just as well. I even put it in with their towels when washing them. Supermarket brands are cheaper and just as good as Milton. Try it you might like it!