Foods You Should Never Store In The Fridge

Oil-Based Salad Dressings

Oil-based salad dressings do not need to be refrigerated. Oil acts as a natural preservative due to its ability to inhibit the growth of bacteria and other microorganisms that cause food spoilage. Unlike water-based dressings, which provide a favorable environment for bacterial growth, oil creates an inhospitable environment by creating an oxygen barrier on the surface of the dressing.

Most commercially produced oil-based salad dressings contain added preservatives such as vinegar, lemon juice, or citric acid. These ingredients help to further extend the shelf life of the dressing by creating an acidic environment that inhibits microbial growth.