After recovery and release testing, a cryopreserved allograft is slow-rate frozen and held in frozen storage. If evaluating a soft-tissue product such as an umbilical cord matrix allograft, confirm whether cryopreservation is the format used and whether a controlled freeze-and-storage temperature is part of the supplier's validated process.
Shipping specifications vary by supplier. Dry-ice shipment overnight inside a validated container designed to hold temperature for the transit window is one approach. Because the product depends on staying within the validated range, a delayed shipment or a damaged container can create a temperature excursion that clinics should document rather than ignore.
Receiving clinics should build a standard intake check into their process for every cryopreserved shipment: confirming the presence of dry ice, checking container temperature on arrival, inspecting for visible damage, and logging the result alongside the lot number before the product is placed into clinic storage.
A cryopreserved allograft's integrity depends on an unbroken cold chain, so clinics should log temperature and condition at receipt for every shipment, not just periodically.