By Eamonn Ryan
As South Africa’s citrus export season ramps up, the spotlight is not only on growing volumes, but increasingly on the resilience and precision of the cold chain that underpins the industry’s global competitiveness.
Initial projections from the Citrus Growers Association (CGA), led by CEO Boitshoko Ntshabele, point to moderate growth in 2026, with export volumes expected to rise by 3–5% from last year’s 203.9 million 15kg cartons. This translates to an estimated 210–215 million cartons moving through the system – placing significant pressure on temperature-controlled logistics from orchard to overseas markets.
Critically, these volumes can only be realised if cold chain integrity is maintained at every stage. From packhouse pre-cooling to port-side storage and vessel loading, even minor temperature deviations can compromise fruit quality, shelf life and market access – particularly for sensitive categories like soft citrus and late mandarins, whose final estimates are still pending.
Recognising this, Transnet Port Terminals (TPT) says it has placed cold chain readiness at the centre of its seasonal planning. Over recent weeks, TPT has worked closely with industry stakeholders on detailed forecasting of refrigerated container (reefer) demand, alongside stack management strategies designed to ensure optimal plug-point availability and minimise dwell times.
Operationally, this translates into a tightly co-ordinated approach to berthing, stowage and storage – each a critical control point in maintaining uninterrupted refrigeration. The ability to manage early or delayed arrivals without breaking the cold chain is particularly important, especially during peak weeks when volumes surge and weather disruptions can ripple through the system.
TPT’s commitment to 24/7 operations across all major container terminals further supports cold chain continuity, ensuring that reefer containers remain powered, monitored and efficiently moved through the ports. In cases of unforeseen delays, contingency measures such as stack extensions and real-time communication protocols are designed to prevent temperature excursions.
Equally vital is the strict management of equipment reliability. The requirement to report faulty refrigerated containers at least four hours before vessel departure highlights the narrow margins within which the cold chain operates – where proactive intervention can mean the difference between export-grade fruit and costly losses.
Significant capital investment – R9-billion over the past three years – has also strengthened the physical backbone of the cold chain. Upgraded handling equipment, including gantry cranes and reach stackers, improves turnaround times and reduces congestion risks that could otherwise expose perishable cargo to temperature fluctuations.
South Africa’s position as the world’s second-largest citrus exporter depends heavily on this seamless cold chain execution. With shipments destined for over 100 international markets between April and September, consistent temperature management is essential not only for quality assurance but also for meeting stringent phytosanitary and retailer requirements, particularly in the EU.
Crop estimates reinforce the scale of the logistical task ahead. Lemon exports are forecast to reach 45.9 million cartons (+10%), while Valencia oranges are expected to total 63 million cartons. Grapefruit shows strong growth at 15.7 million cartons (+16%), and despite some variability in soft citrus categories, overall fruit quality is reported to be high, placing even greater emphasis on preserving that quality through effective cold chain management.
However, external risks remain. Potential disruptions to global shipping routes, such as those linked to instability in the Middle East and the Strait of Hormuz, could extend transit times and increase reliance on robust reefer performance over longer journeys.
In this context, Ntshabele stresses the importance of focusing on controllable factors – chief among them logistics efficiency and infrastructure reliability. Strengthening partnerships with government, improving rail participation and expanding market access are all important, but without a consistently reliable cold chain, these gains cannot be fully realised.
Ultimately, the 2026 citrus season will be a test not just of production capacity, but of South Africa’s ability to move perishable goods at scale without compromising quality – proving once again that in the export fruit industry, the cold chain is as critical as the crop itself.
Reference: CGA