Cold chain logistics — the temperature-controlled supply chain for perishable goods — places extreme demands on pallets that many shippers underestimate. The combination of moisture, temperature extremes, and strict hygiene requirements makes cold chain one of the most challenging pallet applications.
Moisture is the primary enemy. In cold storage environments (34-38°F), condensation constantly forms on surfaces. In freezer storage (-10°F to 0°F), moisture freezes and expands inside wood grain, causing structural damage over time. Pallets that perform perfectly in ambient warehouses can fail rapidly in cold chain.
Temperature cycling — moving pallets between cold/frozen zones and ambient areas — accelerates damage exponentially. Each cycle causes moisture absorption, freezing, expansion, thawing, and re-absorption. This repeated stress weakens wood fibers and loosens fasteners.
Hygiene requirements in cold chain are stringent. SQF, BRC, and GFSI audit standards all include pallet condition as an inspection point. Moldy, dirty, or damaged pallets will cause audit findings that can jeopardize your food safety certifications.
Best practices: use kiln-dried or heat-treated pallets with low initial moisture content; rotate pallets regularly rather than leaving them in cold storage indefinitely; inspect pallets for mold and structural damage before each use cycle; and consider plastic pallets for the most demanding cold chain applications.
At Riverside Pallet Co., we offer a cold-chain grade of wood pallet that's kiln-dried to below 15% moisture content and reinforced with ring-shank nails for superior holding power in freeze-thaw conditions. For our cold chain customers, these pallets significantly outlast standard offerings.