Cold Chain Logistics Best Practices for Pharma Shipments

India exports over $27 billion worth of pharmaceuticals annually. A significant portion moves by air — and a growing share of that is temperature-sensitive: vaccines, biologics, clinical trial samples, insulin, and CAR-T cell therapies. Getting cold chain logistics right isn't just about compliance. It's about whether the medicine works when it arrives.

We've handled cold chain shipments from Delhi, Hyderabad, and Bangalore for pharma companies ranging from mid-size generics exporters to large biopharma manufacturers. Here's what we've learned.

The Three Temperature Bands

Most pharma shipments fall into one of three categories:

• Controlled Room Temperature (CRT): 15–25°C — Tablets, capsules, most solid dosage forms
• Refrigerated: 2–8°C — Vaccines, insulin, liquid biologics
• Frozen: -20°C or colder — Plasma, some mRNA vaccines
• Deep Frozen: -60°C to -80°C — Advanced cell and gene therapy products

Each band requires different packaging, different equipment, and different handling at every touchpoint. A 2–8°C product accidentally stored at -5°C can be just as damaged as one left at 30°C.

Packaging Options — What Actually Works

Passive containers (insulated boxes with gel packs or dry ice) are the most commonly used and cost effective for 2–8°C and -20°C products. Their performance window — how long they maintain temperature — must be validated. "Validated" means the manufacturer has tested the system under simulated worst-case conditions (summer profile and winter profile) and documented the results.

If your forwarder or packaging supplier can't give you a validation report, don't use their box for pharma.

Active containers (with integrated refrigeration units) are used for higher value biologics on longer routes. They're expensive, but for a $500,000 batch of gene therapy product, the container cost is irrelevant compared to the risk.

Where India-Specific Problems Happen

The tarmac at Delhi IGI in June sits at 45°C or higher. From the point a shipment leaves the cold store to when it's loaded onto the aircraft, it can sit in the sun for 30-60 minutes. That exposure matters for 2-8°C products.

Always confirm whether the airline has a temperature-controlled cargo facility (like Air India's dedicated pharma terminal) or just a general cargo shed. The difference in handling quality is significant.

IATA CEIV Pharma — What It Means

IATA's Centre of Excellence for Independent Validators (CEIV) Pharma certification is awarded to airlines, ground handlers, and forwarders who meet specific GDP (Good Distribution Practice) standards. Not every airline has it. When routing valuable or sensitive pharma cargo, we prioritise CEIV-certified carriers — Qatar Airways Cargo, Lufthansa Cargo, and Singapore Airlines Cargo are examples.

Documentation for Pharma Air Cargo

Beyond the standard air waybill, temperature-sensitive pharma shipments need a temperature monitoring device (data logger) in the box, a Certificate of Analysis from the manufacturer, and often an import health certificate for the destination country. For controlled substances, NDPS permits apply additionally.

Getting all of this aligned takes planning. We build a pre-shipment checklist for every new pharma lane we open. It pays off the first time something goes wrong at customs.