I eat a lot of take-out food. All the left overs tend to stink up the refrigerator. I always keep a box of baking soda in the fridge and freezer which helps cut down on the odors, but when all the baking soda is used up I have to do a through cleaning to get rid of the odor. I like to use a mixture of one quart hot water, 1/4 cup white vinegar, and two tablespoons of baking soda. I just mix it up in a bowl and dip my sponge in the mixture as I wipe down all the surfaces inside the fridge. You can also add a touch of lemon juice to help give your refrigerator that extra fresh smell.