1. Remove all food from the fridge. Sort through each item. Throw out any items that have expired or gone bad. If possible, do this before going grocery shopping so that the old expired stuff can be thrown out, thus making space for new groceries. Combine two tablespoons baking soda and one quart water. Dip a sponge in the solution, then wipe down the entire surfaces of the fridge, making sure to scrub out sticky stains. Wipe down every drawer and shelf, not just the main part of the fridge.
2. Wipe the solution away with a damp cloth. Dip a clean rag in water and wash away any residue left behind by the baking soda solution. Use a clean towel to dry each surface.
3. Leave a box of baking soda in the fridge. If your fridge smells bad, open a box of baking soda and leave it in the fridge. Baking soda absorbs odors and makes your fridge smell fresh.