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SingaporeNutrition & Food ScienceQuick questions
Food Preparation and Safety
Quick questions on Food-poisoning bacteria and the danger zone - O-Level Food and Nutrition
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the four conditions bacteria need?Show answer
Bacteria multiply when they have all four of these:
What is the temperature danger zone?Show answer
The danger zone is the temperature range, about to , in which bacteria multiply most rapidly. Food safety depends on keeping food out of this range:
What is controlling bacteria in practice?Show answer
Cook high-risk foods thoroughly, cool leftovers quickly and refrigerate them, reheat food until piping hot and only once, never leave perishable food in the danger zone for long, and combine this with good hygiene to keep bacteria off the food in the first place.
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