Summer Food Safety Tips: Keeping Perishables Fresh in the Heat

Summer is a season associated with outdoor gatherings, picnics, and increased consumption of chilled and ready-to-eat foods. Yet the same warm temperatures that make summer enjoyable also create ideal conditions for harmful bacteria to multiply. Perishable foods such as meat, dairy, eggs, seafood, and fresh produce can spoil rapidly when exposed to heat, increasing the risk of foodborne illness. To keep food safe and fresh during summer, both households and food businesses must strengthen their temperature control measures and adopt practical, season-specific food handling practices. Centre For Food Safety - News You Can Trust Keep Foods Out of the Danger Zone Bacteria multiply fastest between 5°C and 60°C , often reaching dangerous levels within hours when food is exposed to heat (WHO, 2022). Insulated coolers, ice packs, and pre-chilled foods help maintain safe temperatures during transport or outdoor serving.

Keeping cold foods below 5°C significantly slows bacterial growth, reducing the risk of pathogens such as Salmonella and E. coli (CDC, 2023).

Follow Strict Time Limits in Hot Weather In summer, the safe time that food can remain unre frigerated is shorter. Food should not be left out for more than two hours , or one hour if temperatures exceed 32°C (FDA, 2024). Time–temperature abuse is one of the primary causes of food poisoning at picnics and outdoor events.

Prevent Cross-Contamination Cross-contamination between raw and cooked foods is especially common during braais and outdoor cooking where surfaces are limited. Using separate utensils, containers, and boards for raw meats prevents the transfer of harmful bacteria (EFSA, 2021). Raw meat juices can carry pathogens that survive on hands, surfaces, and packaging.

Cook Foods to Safe Internal Temperatures Visual cues are unreliable in determining doneness, especially in outdoor cooking where direct heat may brown the exterior before the interior is cooked. Using a thermometer ensures that foods reach safe internal temperatures:

Poultry: 74°C

Ground meats: 71°C

Whole cuts of beef/lamb: 63°C

Fish: 63°C or until flaky

These temperatures are internationally recognized as necessary to destroy common pathogens (FSANZ, 2023).

Protect Food From Environmental Exposure Heat, flies, dust, and UV exposure can accelerate spoilage and contamination. Covering food, placing coolers in the shade, and avoiding direct sunlight helps maintain safe temperatures and prevents contamination from insects (NHS UK, 2022).

Maintain Personal Hygiene in Hot Conditions High temperatures increase sweat, dehydration, and fatigue, which can compromise safe food handling practices. Regular handwashing, proper sanitising, and staying hydrated reduce the risk of accidental contamination during preparation (HSE, 2023).

Conclusion Summer presents distinct food safety challenges due to elevated temperatures, environmental exposure, and increased outdoor food handling. By maintaining correct temperatures, reducing exposure time, preventing cross-contamination, and following proper hygiene practices, both households and food businesses can significantly reduce the risk of foodborne illness. A combination of awareness, preparation, and consistent monitoring ensures that perishables stay fresh — even in extreme heat.