GAP Food Safety & Sanitation Practices 3 — Questions and Answers
Question 1: A packing shed worker notices that the floor drain is backing up during a wash cycle. What is the FIRST action they should take?
- Continue operations and report it at the end of the shift
- Stop operations immediately and address the drainage issue before restarting (Correct answer)
- Increase the chlorine concentration in wash water to compensate
- Redirect wash water to the field as irrigation
Correct answer: Stop operations immediately and address the drainage issue before restarting
Backed-up drains create standing water that can harbor and spread pathogens, so operations must stop until the issue is resolved to prevent cross-contamination.
Question 2: Which cleaning method is most appropriate for removing dried soil and organic debris from harvest tools before sanitizing?
- Soaking in sanitizer solution for 30 minutes
- Dry brushing followed by rinsing with clean water (Correct answer)
- Wiping with a dry cloth only
- Applying sanitizer directly without pre-cleaning
Correct answer: Dry brushing followed by rinsing with clean water
Sanitizers are ineffective when organic matter is present, so physical removal of debris by scrubbing and rinsing (cleaning) must precede sanitization.
Question 3: What is the primary reason GAP programs require that glass and brittle plastic be restricted or controlled in packing areas?
- To prevent injury to workers
- To eliminate physical contamination hazards in produce (Correct answer)
- To comply with OSHA workplace safety standards
- To reduce waste disposal costs
Correct answer: To eliminate physical contamination hazards in produce
Glass and brittle plastic can shatter and contaminate produce with hard-to-detect fragments, making them a physical food safety hazard.
Question 4: Under the Produce Safety Rule, which of the following water uses has the most stringent microbial quality standard?
- Water used for overhead irrigation of root vegetables
- Water used for drip irrigation below the canopy
- Water used for post-harvest washing that contacts edible portions (Correct answer)
- Water used for pesticide mixing
Correct answer: Water used for post-harvest washing that contacts edible portions
Post-harvest water that directly contacts edible portions of fresh produce must meet the most stringent standards because there is no further kill step before consumption.
Question 5: How often should toilet paper and soap supplies be checked and restocked in field sanitation facilities under best GAP practices?
- Once per week
- Once per day minimum or as needed during the shift (Correct answer)
- Once at the start of the season
- Only when workers report they are empty
Correct answer: Once per day minimum or as needed during the shift
Handwashing supplies must be available throughout the workday; checking at least daily or at shift breaks ensures workers can always practice proper hand hygiene.
Question 6: What is the correct order of steps for effective handwashing according to GAP worker hygiene requirements?
- Wet hands, apply soap, scrub 20 seconds, rinse, dry (Correct answer)
- Apply soap, wet hands, scrub 10 seconds, rinse, dry
- Rinse hands, apply soap, scrub 10 seconds, dry
- Wet hands, rinse, apply soap, scrub 5 seconds, dry
Correct answer: Wet hands, apply soap, scrub 20 seconds, rinse, dry
Effective handwashing requires wetting hands first, applying soap, scrubbing for at least 20 seconds, rinsing thoroughly, and drying with a clean paper towel.
Question 7: Which of the following is a key indicator that a sanitizer solution has become ineffective and must be replaced?
- The solution has been in use for more than one hour
- The solution appears cloudy or discolored due to organic load (Correct answer)
- The solution temperature has dropped below 70°F
- The solution container is less than half full
Correct answer: The solution appears cloudy or discolored due to organic load
Cloudiness or discoloration indicates high organic load that has consumed the active sanitizer, rendering the solution ineffective regardless of its age.
GAP Food Safety & Sanitation Practices 3
A packing shed worker notices that the floor drain is backing up during a wash cycle.
What is the FIRST action they should take?