Dishwasher Leaves a Rainbow Film on Stainless Steel Utensils — Possible Detergent Concentration or Rinse Cycle Issues

A dishwasher should leave stainless steel utensils clean, shiny, and free from residue. If you notice a rainbow-colored film appearing on forks, knives, spoons, or other stainless steel items after every wash, the problem usually points to detergent concentration, rinse performance, or water chemistry rather than damaged cookware. Although the discoloration may look alarming, it […]