Heatwave Alert: Is India’s Milk Supply Chain Safe in 45°C Temperatures?

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As temperatures across several parts of India continue to cross 45°C during peak summer months, concerns are rising not only around public health but also around food safety, especially within the dairy sector. Milk is one of the most temperature-sensitive products in the food supply chain, and extreme heat conditions can significantly increase the risk of spoilage, bacterial growth, and quality degradation if proper storage and transportation systems are not maintained.

We spoke to Dhruv Tomar, Founder PaperPro (M-Lense Research), who who explained how rising temperatures are increasing pressure on India's dairy supply chain and why stronger cold-storage systems and food safety monitoring are becoming more important during extreme heatwaves.

Photo Credit: Magnific

India's Vast and Fragile Dairy Network

India's dairy ecosystem is vast and highly fragmented, involving millions of small farmers, local collection centers, transport operators, cooperatives, and retailers spread across urban and rural regions. "While large organised dairy companies often have access to refrigeration and cold-chain infrastructure, a significant portion of milk movement still happens through semi-organised and informal networks, where maintaining stable temperatures becomes difficult during severe heatwaves," said Tomar.

Why Extreme Heat Makes Milk Vulnerable

Photo Credit: Magnific

"In high temperatures, raw milk can spoil rapidly if not chilled immediately after collection. Even short delays in cooling or transportation can accelerate bacterial activity and reduce shelf life. This not only impacts product quality but can also increase health risks for consumers," explained Tomar. Contaminated or poorly stored milk may lead to digestive infections, food poisoning, and other food-borne illnesses, particularly among children, elderly individuals, and people with weaker immunity.

Heatwaves Are Stressing the Entire Supply Chain

The challenge becomes more serious during peak summer because heatwaves place additional pressure on the entire dairy logistics system. Long transportation routes, traffic delays, and fluctuating external temperatures make milk highly vulnerable during transit. Frequent power cuts in certain regions can disrupt refrigeration facilities and storage units, affecting milk quality before it even reaches consumers.

Small Vendors Face the Biggest Challenges

"Small vendors and local retailers are among the most exposed during such conditions. Many lack advanced cooling systems or temperature-monitoring infrastructure, increasing the chances of spoilage. In local markets, milk and dairy products are often displayed or transported without strict temperature control, especially in semi-urban and rural areas," shared Tomar.

Heat Also Impacts Milk Production

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Heatwaves also create indirect stress on milk production itself. "Higher temperatures affect cattle's health, hydration, and feed consumption, which can reduce milk yield and overall quality. Farmers often face additional operational challenges in maintaining livestock during extreme weather conditions," added Tomar. In high-demand markets, these pressures may sometimes lead to rushed handling practices or compromises in quality monitoring.

Why Climate Change Is Increasing Food Safety Concerns

The growing impact of climate change is making food safety a larger operational concern than before. As temperatures continue to rise year after year, the dairy sector may need stronger investments in cold-chain infrastructure, real-time temperature tracking, and rapid quality testing systems. Technology-driven monitoring solutions can help improve transparency and reduce risks across the supply chain, especially during climate-sensitive periods.

What Consumers Should Keep in Mind

"At the consumer level, awareness is equally important. Purchasing milk from trusted sources, checking packaging and storage conditions, refrigerating products immediately after purchase, and avoiding prolonged exposure to heat can help reduce risks," advised Tomar.

Bottomline

Tomar concluded, "Milk remains an essential part of India's daily nutrition, but maintaining its safety in extreme weather conditions is becoming increasingly challenging. Heatwaves are no longer just an environmental issue; they are emerging as a serious food supply and public health concern as well."

Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.