The corners of a stainless steel sink tend to accumulate grime, mineral buildup, food particles, and grease because these areas are harder to reach with regular sponges. Over time, this buildup can cause discoloration and dullness, making the sink look older and less hygienic. Cleaning the corners effectively requires targeted tools and techniques that reach into tight spaces without scratching the stainless steel surface.
Begin by rinsing the sink with warm water to wash away loose dirt and food particles.
This helps you see the actual buildup in the corners and prevents abrasive debris from scratching the surface during cleaning.
Add dish soap to a sponge and scrub the sink, including the corners.
Even if the sponge cannot fully reach the tight areas, this step will loosen grease and residue.
Rinse out the soap to prepare the corners for deeper cleaning.
Sprinkle baking soda into the corners of the sink.
Use a small brush or toothbrush to scrub the area in the direction of the steel grain.
Baking soda lifts grime, neutralizes odors, and removes light discoloration.
Dampen the brush slightly to form a gentle paste that increases cleaning strength.
Spray white vinegar into the corners and allow it to sit for 5–10 minutes.
Vinegar breaks down calcium deposits and cloudy residue that often form in tight areas.
Use a toothbrush to scrub the corners after soaking, then rinse thoroughly.
A small detailing brush, toothbrush, or sponge brush helps clean narrow corners more effectively.
Focus on:
Corner seams
The base where walls meet
Edges around the drain
Underrim areas
Brush gently to avoid scratching the stainless steel.
For difficult stains or grime, apply a thick paste of baking soda and water directly to the corner.
Let it rest for 10–15 minutes, then scrub.
Lemon juice can help remove discoloration while leaving a fresh scent.
After cleaning, rinse the corners thoroughly with warm water to remove all cleaners.
Dry the sink completely with a microfiber cloth to prevent water spots and mineral deposits from forming.
Apply a few drops of mineral oil or stainless steel polish to a cloth.
Buff the sink corners gently in the direction of the grain.
Polishing helps protect the area and prevents grime from sticking as easily in the future.
Regular maintenance prevents heavy buildup that becomes difficult to remove.
A grid keeps food particles and utensils from settling into corners.
Do not use steel wool or coarse brushes that can scratch the finish.
A quick rinse prevents residue from drying into the corners.
Cleaning the corners of a stainless steel sink requires a combination of dish soap, baking soda, vinegar, and detailed scrubbing with small brushes. By reaching into tight spaces and using gentle cleaning methods, you can remove grime, restore shine, and keep the sink looking fresh. Regular maintenance prevents future buildup and helps the sink maintain its durability and appearance.
