The biggest challenge to the arrival of the COVID vaccine is keeping it cold.
The Pfizer two-shot vaccine has to be stored at severely low temperatures, and Evansville Welding Supply — which also happens to sell dry ice — is ready to pitch in.
Dry ice is made from carbon dioxide which is compressed in a device that forms the gas into a solid.
The blocks are then sealed in containers for shipment — the seals prevent air from getting inside the super-cold containers.
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