If you choose to use toilet paper in the fridge, consider the following tips for optimal effectiveness:

Use a fresh roll – replace toilet paper rolls every three weeks.

Avoid placing the roll near potential leaks – prevent a mushy mess by keeping it away from leaks.

Conceal the roll at the back of the refrigerator – avoid an unsightly appearance next to food items.

Discard the roll after its time in the refrigerator – do not attempt to reuse it in the bathroom, as it will have absorbed odors.

Other Ways To Deodorize Your Fridge

Baking soda: 

Excellent at absorbing and eliminating refrigerator smells.

Black cumin seed oil: Mix with dish soap and coat the inside of the refrigerator to refresh and deodorize.

Activated charcoal: 

Available in powder, filter, or fabric form, it absorbs moisture.

Vanilla extract: Apply to a cotton ball and place it in the refrigerator for a pleasant fragrance.