Baking soda and vinegar are used a lot for natural cleaning methods. However, when the baking soda bubble up and fizzles, this is actually the two ingredients canceling each other out. Thus this method actually cleans using the baking soda then finishes up with the vinegar. For this method, it's best to use vinegar after wiping away the baking soda paste. That way, it causes a reaction with any leftover sediment to help you get rid of it entirely.