How to Clean Stainless Steel Pots and Pans
Stainless steel cookware is durable and long-lasting, but accumulates discolouration, burn marks, and rainbow heat staining. These are entirely removable with the right products — stainless steel can be restored to like-new condition even after years of use.
Everyday Cleaning
- Wash with dish soap and a non-scratch sponge while still warm (not hot) — food residue is much easier to remove before it fully sets
- For food stuck to the bottom: add water to cover the stuck-on food and bring to a simmer on the stove for 5 minutes. The heat and steam lift the residue and you can scrub it off easily after cooling slightly.
- Dry immediately after washing to prevent water spots
Removing Discolouration and Food Residue: Bar Keepers Friend
Bar Keepers Friend (available at most Canadian grocery and hardware stores) contains oxalic acid and mild abrasives that are specifically effective on stainless steel:
- Wet the pan and sprinkle Bar Keepers Friend powder on the discoloured or stained area
- Rub with a damp cloth or non-scratch scrub pad in the direction of the grain (along the brushed lines on the stainless steel — this avoids scratching)
- Allow 1–2 minutes for the oxalic acid to work
- Rinse thoroughly
- Repeat if necessary — multiple light applications are more effective than heavy scrubbing
Removing Rainbow Heat Staining (Bluish/Purple Discolouration)
Rainbow staining on stainless steel is caused by chromium oxide forming at high heat — it's not damage, just a surface effect:
- Apply white vinegar to the stained area and rub with a cloth — vinegar dissolves chromium oxide and removes the rainbow staining in most cases
- Follow with Bar Keepers Friend if vinegar alone doesn't fully remove it
Removing Stubborn Burn Marks
- For severely burnt-on residue: add 2 cups of water and 1/2 cup of white vinegar to the pan and bring to a boil. The boiling vinegar solution loosens and lifts the burnt carbon.
- After cooling, scrub with Bar Keepers Friend
- For external burn marks on the bottom of the pan: apply Bar Keepers Friend paste with a cloth or non-scratch pad — these respond well to the oxalic acid treatment
What Not to Do
- Do not use steel wool — this scratches stainless steel permanently
- Do not use bleach — bleach corrodes stainless steel
- Do not soak in salt water — salt causes pitting
- Always rinse Bar Keepers Friend off completely — residue left in the pan is not food-safe
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