Dishwasher leaves blue or rainbow-colored film on plastics and glass.

Safety first: No special safety concerns beyond normal use.

• 1. Reduce detergent amount: Use the minimum recommended dose for your water hardness and soil level.
• 2. Adjust softener and rinse aid: If using multi-function tablets (3-in-1, etc.), reduce or disable separate salt and rinse aid dosing if your manual allows.
• 3. Run hot cycles: Run one or two hot cycles without dishes, using no detergent, to help remove existing film.