To remove minor scratches from stainless steel, use Comet or a whitening toothpaste to delicately buff them away. To remove deeper scratches, use a damp piece of fine-grit sandpaper. The products should always be rubbed in the direction of the grain so that the metal is not further damaged.
To prevent scratches, avoid applying cleaners that contain chlorine and other similar chemicals. Instead, opt for substances that contain ammonia, such as Windex. Olive oil and vinegar with water are also safe to use on stainless steel appliances. Spray Citrushine or Weiman Stainless Steel Cleaner on objects to give them luster.