ADAFSA EFST Exam cheat sheet

UAE food safety is governed federally by MOIAT/ADAFSA (Abu Dhabi) and locally by municipal authorities; ADAFSA Law No. 2 of 2008 and its implementing regulations set the Abu Dhabi framework.

Codex Alimentarius standards are the reference baseline for imported and locally produced food where UAE/GSO standards are silent; national standards take precedence when they differ.

GSO standards (e.g., GSO 9 labelling, GSO 150 shelf life, GSO 2233 requirements for food handlers) are binding technical rules across GCC member states.

Principle of primary responsibility: the food business operator (FBO) is legally responsible for food safety; the regulator verifies, it does not certify safety.

Traceability rule: FBOs must be able to identify one step back and one step forward; records must be produced on regulator request within the statutory timeframe.

Recalls are classified by severity (Class I = reasonable probability of serious harm/death; Class II = temporary or reversible harm; Class III = unlikely to cause harm).

Import controls: consignments require prior registration of the product and establishment, a health certificate, and may be subject to border inspection or laboratory sampling.

Enforcement hierarchy typically escalates: verbal/written notice, improvement notice, fines, closure or product seizure/detention; proportionality and documented evidence govern the choice.

Three hazard classes: biological (bacteria, viruses, parasites, prions), chemical (toxins, allergens, cleaning residues, heavy metals), physical (glass, metal, hard plastic, bone).

Bacterial growth cardinal temperatures: minimum ~5°C, optimum 20-45°C (danger zone), maximum ~60-65°C; the 5-63°C range is the standard danger zone.

Time-temperature rule: bacteria multiply by binary fission; at optimum temperature generation time can be 20-30 minutes, so 4 hours in the danger zone is the cumulative limit for ready-to-eat food.

pH and water activity: most pathogens do not grow below pH 4.6 or below aw 0.85; these values separate high-risk from low-risk foods.

Spore formers (Clostridium botulinum, Bacillus cereus, Clostridium perfringens) survive normal cooking; control relies on rapid cooling, pH/aw control, or botulinum cook (12D, 121°C core).

Risk = likelihood of occurrence × severity of consequence; risk assessment steps are hazard identification, hazard characterisation, exposure assessment, risk characterisation.

Dose-response matters: infectious dose varies (e.g., Salmonella often low hundreds of cells; STEC and Shigella can infect at very low doses).

Allergen hazards are chemical/immunological and are not removed by cooking; cross-contact control and accurate labelling are the only controls.

Two-stage cleaning: cleaning (detergent removes soil) then disinfection (reduces microorganisms); disinfection is ineffective on soiled surfaces.

Contact time and concentration are set by the disinfectant manufacturer's label; chlorine solutions are typically 100-200 ppm for food-contact surfaces with a defined contact time.

Personal hygiene rule: handwashing with soap and warm water for at least 20 seconds, especially after toilet use, before food handling, and after handling raw food.

Exclusion rules: food handlers with vomiting or diarrhoea must be excluded for at least 48 hours after symptoms cease; reportable conditions include typhoid, hepatitis A, and infected wounds.

Cross-contamination prevention: colour-coded equipment, separation of raw and ready-to-eat zones, dedicated sinks, and workflow from dirty to clean.

Cold chain: chilled food at 0-5°C, frozen at -18°C or below; thawing in a refrigerator, under running water, or in a microwave followed by immediate cooking.

Cooking targets: core temperature 75°C for at least 30 seconds for poultry and minced meat (equivalent time-temperature combinations apply).

Pest control and waste: waste stored in covered, labelled containers away from food areas, removed at defined frequency; pest control records and bait maps retained.

Seven HACCP principles: hazard analysis; determine CCPs; establish critical limits; monitor CCPs; establish corrective actions; establish verification procedures; establish record-keeping.

Prerequisite programmes (PRPs) - hygiene, pest control, maintenance, supplier approval, training - must be in place before HACCP is implemented.

A CCP is a step where control can be applied and is essential to prevent, eliminate, or reduce a significant hazard to an acceptable level; use a decision tree to distinguish CCP from non-CCP.

Critical limits must be measurable and verifiable (e.g., core temperature ≥75°C for 30 seconds), not qualitative statements.

Monitoring must specify what, how, when, and by whom; results must be recorded at the time of monitoring.

Corrective action has two parts: correct the affected product (segregate, rework, or reject) and correct the process (identify root cause, adjust, verify).

Verification (validation, record review, calibration, internal audit, product testing) confirms the system works; it is done by someone other than the monitor.

Review HACCP plans at least annually and whenever there is a change in product, process, equipment, or legislation.

Training design cycle: needs analysis → learning objectives → design/content → delivery → assessment → evaluation.

Objectives should be SMART and written at the correct cognitive level (Bloom's taxonomy: remember, understand, apply, analyse, evaluate, create).

Constructive alignment: assessment tasks must match the stated learning objectives and the delivery method used.

Assessment methods: formative (during learning, feedback-focused, e.g., quizzes, observation) versus summative (end of learning, judgement-focused, e.g., exam, practical test).

Validity = the assessment measures what it claims; reliability = consistent results across assessors and occasions; inter-rater reliability is improved by rubrics and moderation.

Competence-based food safety assessment typically combines knowledge test (e.g., pass mark 70-80%) with observed practical demonstration against a checklist.

Kirkpatrick's four levels of evaluation: reaction, learning, behaviour, results.

Training records must show date, content, trainer competence, attendee, and assessment outcome to satisfy audit requirements.

Adult learning (Knowles' andragogy): adults need relevance, autonomy, experience-based learning, problem-centred content, and immediate application.

70-20-10 model: most learning occurs on the job (70%), through others/coaching (20%), and in formal training (10%).

Feedback should be specific, timely, behavioural, and focused on the task rather than the person (SBI: Situation, Behaviour, Impact).

Coaching cycle: observe → diagnose → plan → demonstrate → practise → feedback → follow-up.

Communication barriers in food safety include language, literacy, shift patterns, and cultural norms; mitigate with visual aids, translated materials, and demonstration.

Giving feedback: use open questions, active listening, and confirm understanding by teach-back (ask the learner to explain or demonstrate back).

Behaviour change models (e.g., COM-B: capability, opportunity, motivation) explain why knowledge alone does not ensure safe practice.

Inspection = compliance checking against legal requirements; audit = systematic, independent, documented evaluation against a standard or management system.

Audit types: first-party (internal), second-party (supplier/customer), third-party (certification body); announced versus unannounced.

Evidence hierarchy: records, observation of practice, interviews, and sampling/laboratory results; triangulate across sources.

Non-conformity classification: critical (immediate risk to health), major (systemic failure), minor (isolated lapse); classification drives the corrective action timeframe.

Corrective action requests must state the finding, the requirement breached, the root cause, the action, the responsible person, and the due date.

Audit sampling: use risk-based sampling rather than covering every item; document the sampling rationale.

Closure requires verification of implementation and effectiveness, not just a written response.

Auditor independence and objectivity: auditors must not audit their own work; declare conflicts of interest and maintain confidentiality.