Cleaning and Sanitizing Flashcards

What is the minimum contact time required when using chlorine sanitizer at 50–99 ppm concentration?

Answer: 7 seconds

Chlorine sanitizer at 50–99 ppm requires a minimum contact time of 7 seconds to be effective.

Which factor does NOT affect the effectiveness of a chemical sanitizer?

Answer: Color of the sanitizer

The color of a sanitizer has no bearing on its effectiveness; concentration, contact time, and temperature are the critical factors.

A food handler notices the sanitizer solution looks cloudy and has a strong odor. What should they do?

Answer: Discard and prepare a fresh solution

Cloudy sanitizer solution indicates it is dirty and has lost effectiveness; it must be discarded and replaced with a fresh batch.

When sanitizing food-contact surfaces manually, what is the correct order of the steps?

Answer: Wash, rinse, sanitize

The correct manual warewashing order is wash, rinse, then sanitize to ensure surfaces are clean before sanitizer is applied.

A three-compartment sink is being set up. Which compartment should contain the sanitizing solution?

Answer: Third compartment

The third compartment of a three-compartment sink is always designated for the sanitizing solution.

What is the primary purpose of rinsing equipment between the wash and sanitize steps?

Answer: To remove detergent that could reduce sanitizer effectiveness

Rinsing removes detergent residue, which can neutralize chemical sanitizers and reduce their effectiveness.

Which statement about air-drying sanitized equipment is correct?

Answer: Air-drying is required to prevent recontamination from towels

Sanitized equipment must be air-dried because towels can recontaminate surfaces even if they appear clean.