Covid 19 vaccine storage containers

updated 10th December 2020

  • Pfizer/BioNTech vaccine requires -70°C (plus/minus 10°C) - Arctic UltraFreezer 2020

  • Moderna vaccine requires -20°C and Oxford University/AstraZeneca requires only chilled temperatures - ArcticStores

UltraFreezer 2020

Our new design -70°C vaccine storage UltraFreezer includes a single door with a "just in case" escape hatch as required for safe cold room operations in many countries.

Flat floor, alarm, day glow safety signage and internal lighting are standard features. GDP compliant and can be supplied with GDP certification.

Available for hire and sale - factory deliveries of 20ft vaccine storage containers from early January 2021.

Can also be supplied with 2 machines for in-built redundancy. Door and escape hatch are located in the side wall. With both machines running we realised and maintained -70°C. See the container and temperature graph here

Temperature variance with door opening and de-frost events

It is inevitable that when opening the storage container doors there will be temperature gain with much hotter ambient air entering the cold zone. Equally during the essential de-frost cycles a small % de-frost heats enters the cold zone at under ceiling level spreading from the air return zone above the machine.

Our information is that vaccines will be delivered and stored in thermal boxes. The thermal packing will protect the vaccine from temperature change during these short transient periods.

UltraFreezer SuperStore

For large volume storage the UltraFreezer SuperStore solution has many advantages including:

  • Improved floor utilisation - you can store more!
  • Improved product accessibility
  • In-built redundancy through multiple refrigeration units
  • With anteroom to reduce heat gain when opening external door(s)

The model showing to the left is operating at -40°C/-40°F.

-70°C/-94°F SuperStore can be available from January 2021.

Arctic UltraFreezers are with SmartArctic remote control and monitoring

“The Best performance in extreme cold”

Working safe in extreme cold temperatures with the best protection is what Tessuto International does as leading producer of Coldstore and Freezer clothing. For 30 years we provide our customers with certified standard and customized clothing so you can wear the right protection in temperatures as low as -65°C. The complete product range includes protective workwear from head to toe. As we also produce in the Netherlands we have advantages in supply chain and speed.

Let us help you to be prepared: ‘working clothes in cold conditions’

Call us on +31 416 363919 or visit

UltraFreezer ORIGINAL

Specification minimum temperature -65°C/-85°F @ ambient 50C/122F

Already delivered to vaccine stakeholders we can see perfect temperature performance at effective constant -65°C.

Under certain circumstances we believe that this model will go lower and possibly as low as -70C. Special circumstances include a low working ambient temperature and possibly only in 20' containers.

Our UltraFreezer's include health and safety features including escape hatch, dayglow emergency signage and alarm beacon/siren.

UltraFreezer ORIGINAL set-point -65°C/-85°F performing September 2020