613 Food Hygiene and Safer Food Handling | Keeping Hands and Preparation Areas Clean, and Recognizing When Food Should Not Be Eaten
Food hygiene is about keeping food safe from contamination while it is stored, prepared, cooked, served, and eaten. Problems can arise from unclean hands or surfaces, raw foods touching ready-to-eat foods, unsafe water, poor temperature control, or food that has spoiled.
Many useful precautions are simple and visible in daily life: clean preparation areas, separate foods that can contaminate one another, cook items thoroughly when cooking is required, and store food in conditions that slow spoilage. The aim is not to judge food only by appearance, but to combine clean handling with sensible decisions about time, temperature, water, and freshness.
613.1 Keeping Hands and Preparation Areas Clean
Clean hands and preparation surfaces reduce the chance that contamination reaches food before it is eaten. Wash hands before handling ready-to-eat items and after tasks such as touching raw meat, using the toilet, handling waste, or cleaning up spills. Worktops, cutting boards, knives, and utensils should be cleaned after dirty tasks and before they are used for foods that will not receive further cooking.
Cleaning is most effective when food residue and grease are removed rather than merely spread around with a damp cloth. Cloths and sponges themselves can become dirty, so they need regular washing, drying, or replacement according to how they are used. Fresh produce may also need rinsing with safe water when appropriate. The purpose is not to create a sterile kitchen; it is to prevent a chain in which contamination from hands, raw ingredients, waste, or dirty equipment reaches food at the final stage. Separate cloths for floors and food-contact areas can also reduce accidental transfer.
613.2 Separating Raw and Ready-to-Eat Foods
Raw foods can carry germs that are destroyed or reduced by cooking, while ready-to-eat foods may be eaten without that final heat step. If raw meat, poultry, seafood, eggs, or their juices touch salad, cooked food, fruit, bread, or clean utensils, contamination can move directly to food that will not be cooked again.
Separation can be simple. Store raw items so they cannot drip onto other food, use separate plates or containers when possible, and clean knives, boards, and hands before switching from raw ingredients to ready-to-eat ones. A board that looks clean can still carry residue from the previous task, so wiping alone may not be enough. During shopping or transport, keeping leaking raw products apart from foods eaten as they are can also help. The safest workflow is one in which the raw-food side of preparation does not cross back into the clean, ready-to-eat side. This separation is especially useful when several foods are being prepared at the same time.
613.3 Cooking Food Thoroughly
Cooking makes many foods safer by heating them enough to kill harmful microbes that may be present. The challenge is that the outside can look cooked while the center remains underheated, especially in thick pieces, minced foods, stuffed foods, or large portions. Color and texture can provide clues, but they are not equally reliable for every food.
Where a food thermometer is available and local guidance gives a target temperature, it offers a more dependable check than appearance alone. Without one, follow established cooking instructions and make sure the food is hot through the center rather than only on the surface. Reheated leftovers also need adequate heating throughout. Some foods are designed to be eaten raw or lightly cooked, but that choice can carry greater risk for vulnerable people. Cooking cannot make food safe if toxins or spoilage have already developed, so proper storage before cooking still matters. Follow package or local food-safety guidance when a food needs a specific cooking method.
613.4 Keeping Food at Safer Temperatures
Temperature affects how quickly many microbes grow in food. Perishable foods left warm for long periods can become risky even when they looked and smelled normal at first. Cooling slows growth, while keeping cooked food properly hot can also limit the time it spends in a range where microbes multiply more easily. As a practical general reference, cold perishable food should be kept at about 40°F (4°C) or below and hot food at about 140°F (60°C) or above. Exact temperature rules differ by food, equipment, and local guidance.
The everyday principle is to avoid unnecessary time between safe storage and eating. Refrigerate foods that need refrigeration, and refrigerate or discard perishable food within about 2 hours when it is not being kept safely hot or cold; in temperatures above 90°F (32°C), use about 1 hour instead. Keep refrigerator doors closed as much as practical. Large hot portions may cool more evenly when divided into smaller containers. During travel, markets, power cuts, or outdoor events, think about how long perishable food has been without reliable temperature control. When its history is uncertain, caution is safer than trying to rescue it by reheating. Storage planning matters during travel or power cuts.
613.5 Using Clean Water for Food and Drinks
Water used for drinking, washing produce, making ice, preparing infant feeds, or mixing foods can become a route for infection if it is contaminated. The same is true for water used to rinse utensils that will touch ready-to-eat food. Clear appearance is not proof of safety, so the source and local water conditions matter more than how the water looks in a cup.
Use a source considered safe in that setting whenever possible. If local authorities or health services advise boiling, filtering, disinfecting, or otherwise treating water, follow the method and product instructions they provide. Store treated or safe water in clean, covered containers and avoid dipping dirty hands or cups into the supply. Water used only for cleaning floors does not need the same standard as water that will enter the mouth. Matching water quality to the task helps protect food without wasting scarce safe water where a lower standard is acceptable. This distinction matters where safe drinking water is limited.
613.6 Recognizing When Food Should Not Be Eaten
Food should not be eaten when there are strong signs that it has spoiled or when its safety history is doubtful. Visible mold, unusual slime, swelling or leaking containers, an unexpected sour or rotten smell, or a major change in texture can all be warning signs. Some dangerous contamination, however, causes no obvious change, so appearance and smell cannot prove that food is safe.
Time and storage conditions give important context. Perishable food that has been left unrefrigerated for too long, thawed and warmed repeatedly, or stored after a power failure may be unsafe even if it looks normal. Canned or packaged foods with broken seals or severe damage should also be treated cautiously. Tasting a questionable food is not a safe way to test it. When the source, storage history, or condition raises a real concern, discarding the item is usually a better choice than relying on cooking to correct every possible problem. Damaged packaging and unknown storage history deserve the same kind of caution.