Place a clean cloth or thin towel over the top of the jars and secure it with a rubber band. Set the jars on a small plate or saucer to catch any runoff. Place the jars and plate in a cool spot out of direct sunlight for 2 weeks. [Editor's Note: Ideally, you want to ferment your sauerkraut someplace that’s between 60° and 70°F (16° and 22°C). If you keep your home below 60°F (16°C) during the winter months, it will still ferment, but it may take longer.] Make sure to check your sauerkraut every other day, lifting the small jar and skimming any scummy bloom that may have appeared. Press the small jar down if any cabbage has floated to the top of the liquid.☞ TESTER TIP: Be forewarned: The sauerkraut mixture will be a bit stinky. That’s normal. Deal with it.