9 Clean Habits That Make Your Kitchen Dirty: Food Network | Help Around the Kitchen: The Food Network

You may be thoroughly cleaning your knives, but if you put them back on the knife block, you are making it dirty. Knife blocks are the perfect environment for yeast and mold to grow.

Instead: Clean your knife block regularly. Remove all knives, turn the dough upside down and shake it to remove any debris or particles stuck inside. Wash the knife block by hand in warm, soapy water and use a small brush to scrub the slots. Rinse with cool water, then clean in a mixture of water and bleach.