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Food Handler · Crisis Management and Recalls

A food manager wants to prevent Clostridium botulinum growth in reduced-oxygen packaged (ROP) foods. What is the primary control?

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Correct answer

Strict temperature control (refrigeration) combined with other controls, because C. botulinum is an anaerobe that produces deadly toxin in low-oxygen environments — ROP foods require a HACCP plan and variance

  1. A Leaving the package open
  2. B Adding more salt only
  3. C Cooking at low temperature
  4. D Strict temperature control (refrigeration) combined with other controls, because C. botulinum is an anaerobe that produces deadly toxin in low-oxygen environments — ROP foods require a HACCP plan and variance

Why this is the answer

Clostridium botulinum and rop foods: C. botulinum is an ANAEROBIC, spore-forming bacterium that produces a deadly neurotoxin (botulism). RISK in ROP: Reduced-oxygen packaging (vacuum packaging, sous vide, modified atmosphere) creates the low-oxygen environment C. botulinum thrives in; if spores survive and conditions allow, toxin forms — and the toxin is often undetectable (no off-odor or appearance change).

Controls: Strict refrigeration (cold temperatures inhibit growth and toxin production); combined with other barriers — high acidity (low pH), low water activity (salt/curing), competing cultures, or validated cooking; ROP requires a HACCP PLAN and typically a VARIANCE from the regulatory authority because of the botulism risk; BOTULISM is rare but often fatal — causes paralysis; OTHER C. botulinum sources: improperly home-canned foods, garlic-in-oil mixtures held at room temperature, time/temperature-abused baked potatoes in foil; food managers using ROP must control C. botulinum through validated processes, refrigeration, and a documented HACCP plan with regulatory approval; this is one of the highest-risk specialized processes.

Source: Food Manager — C. botulinum and Reduced-Oxygen Packaging

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About this topic: Crisis Management and Recalls

Crisis management covers power failures, water outages, sewage backups, fires and product recalls — when operations must stop, how to protect or discard food, and how to handle a recalled product on the premises. This is one of 8 Food Manager questions on crisis management and recalls, each with a full explanation on a single study page.

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