By Eamonn Ryan
The following is the transcript of a presentation by John Ackermann – previous editor and founder of this publication – on the impact of the cold chain, commemorating World Refrigeration Day on 26 June. It is Part 2 of a four-part series.

On this World Refrigeration Day, stakeholders from the South African Institute of Refrigeration and Air Conditioning (SAIRAC) gathered to highlight their ongoing efforts in promoting sustainable practices within the refrigeration and air conditioning (RAC) sector.
The vital role of the cold chain: Ensuring food safety and sustainability
John Ackermann’s presentation on the significance of the cold chain underscored its indispensable role in modern life, touching upon various facets where refrigeration technology impacts daily existence. Ackermann’s insights delved into how refrigeration extends beyond mere preservation, profoundly influencing sectors as diverse as healthcare, mining, agriculture, and food distribution.
“At its core,” Ackermann emphasised, “the cold chain ensures that foodstuffs retain their freshness and safety from farm to fork.” He illustrated this with examples ranging from supermarket produce to international delicacies, all made possible by meticulous temperature control throughout their journey.
Referring to the mining industry, Ackermann highlighted the critical need for refrigeration in deep-level mining operations, where maintaining low temperatures is crucial for worker safety and productivity. Similarly, in healthcare settings, refrigeration plays a pivotal role in preserving medications, vaccines, and medical equipment like MRI machines and ICU units.
Economically, Ackermann stressed the role of the cold chain in bolstering South Africa’s export capabilities, particularly in perishable goods like fruits, vegetables, and seafood. “Our economy relies on the reliability of the cold chain,” he noted, “ensuring that products maintain their quality during transit, whether fresh or frozen.”
The presentation also delved into the complexities of managing temperature-sensitive products throughout their distribution. Ackermann showcased a cold store maintaining fish at -60°C for specialised markets, underscoring the precision required to meet global standards for food safety and quality.
“A key aspect of the cold chain,” Ackermann added, “is the constant monitoring of temperatures to ensure compliance with safety regulations.” This includes rigorous protocols at every stage, from storage facilities to refrigerated transport and distribution centers, where products are meticulously handled to maintain their integrity.
Closing the first section of his presentation, Ackermann emphasised the collective responsibility within the cold chain, highlighting the integral role of consumers in upholding its standards. “From farm to plate,” he concluded, “every participant in the cold chain plays a crucial part in ensuring that food remains safe, fresh, and accessible.”
Ackermann’s comprehensive overview underscored the critical infrastructure behind the convenience and reliability consumers expect from their food supply. As SAIRAC and its partners continue to innovate within the RAC sector, events like World Refrigeration Day serve as reminders of the ongoing commitment to sustainability and efficiency in refrigeration practices.