Why is final rinsing of instruments often performed with treated (for example deionized or RO) water rather than tap water?

Why is final rinsing of instruments often

Multiple choice — select the best answer

ATreated water is hotter and speeds drying
BTreated water removes the need for detergent
CTap water is always contaminated with spores
DIt reduces mineral deposits and spotting that tap water minerals can leave on instruments

✓ Correct answer: D. It reduces mineral deposits and spotting that tap water minerals can leave on instruments Tap water contains dissolved minerals that can cause spotting, staining, and deposits; using treated water for the final rinse reduces these residues and protects instrument surfaces.

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Topic: Decontamination & Cleaning

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Why is final rinsing of instruments often performed with treated (for example deionized or RO) water rather than tap water?

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