The next step is to remove the unit's shelves, vacuum loose debris inside, use warm soapy water, and with a non-abrasive scrubber, clean the inside of the refrigerator or freezer thoroughly. To keep your refrigerator interior clean and safe, it is vital to regularly wipe down all interior surfaces using warm water and a non-abrasive detergent or soap. Avoid using harsh chemicals as they can cause permanent damage and even lead to discoloration of plastic and metal elements. Additionally, it is important to give your fridge shelves a thorough cleaning at the same time, making sure to remove any food or grime that may have accumulated over time. By following these simple steps and keeping your fridge interior clean and well-maintained, you can rest assured that your food will always be fresh and free from dangerous bacteria or mold growth.