What They Found: 640,000 colonies of bacteria in the gasket (rubber ring that holds the blade in place).
How to Clean It Properly: Add two teaspoons of dish soap and one cup of water into the blender. Put the lid on and blend soap and water mixture for a minute in order to dislodge and eliminate all of the food hiding in the gasket. Then, proceed to wash the blender the way you normally would. Every few weeks or months, depending on how often you use your blender, completely take it apart and run it through the dishwasher.