Look closely at the stainless steel door. You will see tiny brush strokes—these brush strokes indicate the direction of the grain. Note if the grain (brushstrokes) is moving horizontally or vertically. [2] X Research source

Wet the entire surface of the fridge door with water. Sprinkle a gentle polishing cleanser powder onto the wet door. Dampen a clean sponge. Move the sponge across the surface of the door in the direction of the grain to combine the product with the water. Rinse the fridge door with water. Pat it dry with a clean microfiber cloth. [3] X Research source

Pour the cleaning vinegar into a small bucket. Wet a clean cloth with undiluted cleaning vinegar. Moving in the direction of the grain, wipe down the surface of your fridge door with the damp cloth Wiping with the grain, remove any excess vinegar with a dry cloth. [4] X Research source

Be sure to note any recommended safety precautions, such as wearing gloves. [5] X Research source

If you are using a powder form, mix the product with water to form a paste. Apply the paste or the cream to the hairline scratch with a damp cloth or sponge. As you rub the paste or cream into the scratch, always move in the direction of the grain. Occasionally wipe away the cleaning product with a clean damp cloth and inspect the scratch. Continue to apply the cleaning product and buff the affected area until the scratch is no longer visible. [6] X Research source If the scratch remains, try to remove the scratch with a mildly-abrasive product, like whitening toothpaste.

Coat the bristles of the toothbrush with the whitening toothpaste. Use the brush to apply the toothpaste directly to the minor scratch. As you work to buff out the scratch, always move the toothbrush in the direction of the grain. Periodically remove wipe away the toothpaste with a wet rag and assess the scratch. Wipe in the direction of the grain. Continue to apply the whitening toothpaste to the scratch until it is no longer present. Once the scratch is gone, wipe away the toothpaste with a clean, damp rag. Condition the area you cleaned with metal polish or olive oil. [7] X Research source

Wet the scratched area with a sponge or cloth saturated with water. Throughout the process, keep the surface wet. Wet a piece of sandpaper with water. Throughout the process, make sure the sandpaper remains wet. Move the wet sandpaper lightly over the scratch in the same direction of the grain. Feather out from the scratch to blend in the affected area. Once the scratch is removed to your satisfaction, wipe the area with a wet rag in the direction of the grain. Pat the area dry with a microfiber cloth. Condition the treated area with a metal polish or olive oil. You may use a chloride-free paste In addition to water[9] X Research source

Always read and follow the instructions provide by the product’s manufacturers. Affix the finest grit sandpaper to the sanding block. Coat the sandpaper with the sanding lubricant. Sand the affected area in the direction of the grain. If the scratch is not vanishing, affix the next coarsest sandpaper to the sanding block. Coat the sandpaper with the sanding lubricant. Sand the affected area in the direction of the grain. If the scratch still remains, affix the coarsest sandpaper to the sanding block. Coat the sandpaper with the sanding lubricant and sand the affected area in the direction of the grain. Once the scratch vanishes, use the same grit sandpaper to treat the entire stainless steel door in the direction of the grain. [10] X Research source

The only way to repair dented stainless steel is to replace the part. [13] X Research source