Food production, hygiene and quality management: HACCP, safety, sustainability and waste
Domain 4 asks you to design and critique safety systems, not merely list hygiene rules. Typical tasks give a process flow (cook-chill, raw minced meat, salad bar) and ask for hazards, critical control points and monitoring, or ask you to weigh food waste against other sustainability goals.
Legal frame
Regulation (EC) 178/2002 (general food law, traceability, RASFF), 852/2004 (general hygiene) and 853/2004 (food of animal origin) apply, plus the German Lebensmittelhygieneverordnung. Under the Infektionsschutzgesetz §42, food handlers must be instructed and must not work with certain infections or open wounds on exposed skin.
HACCP in seven principles and twelve steps
Conduct a hazard analysis, determine CCPs, set critical limits, establish monitoring, define corrective actions, verify, and document. Prerequisites are good hygiene practice, cleaning and disinfection, pest control and training - HACCP does not replace them.
Critical limits worth memorising
Core temperature of 72 °C for at least 2 minutes for poultry; hot holding at 65 °C or above; chilling to 10 °C or below within two hours; freezer at −18 °C or colder. Microbiological criteria under Reg. 2073/2005: Listeria monocytogenes ≤100 CFU/g at the end of shelf life, absence of Salmonella in 25 g.
Quality management and sustainability
ISO 9001 (quality management), ISO 22000 (food safety management), IFS/BRCGS as retail supplier standards, GMP in production. Roughly one third of food produced globally is lost or wasted; Germany discards about 11 million tonnes a year, with households the largest single source. The waste hierarchy is avoidance, then donation or reuse, then recycling, then disposal. Distinguish Mindesthaltbarkeitsdatum (quality) from Verbrauchsdatum (safety, e.g. minced meat).
Worked example
Cook-chill process for a canteen stew: cooking to 75 °C core kills vegetative pathogens and is a CCP with a probe thermometer and a log sheet as monitoring. Blast chilling to ≤10 °C within two hours is a second CCP. Reheating to ≥75 °C before service is a third, with discarding as the corrective action. Verification is a monthly review of logs plus occasional microbiological sampling; the whole plan is documented. Note that spore-formers such as Bacillus cereus survive cooking, so the cold chain, not the cooking step, is what protects the consumer.
Traps
- Naming general hygiene measures (hand washing) as CCPs.
- Presenting HACCP as a zero-risk guarantee.
- Disinfecting a surface without cleaning it first.
- Treating the MHD as a safety expiry date.