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New vaccine s need for dry ice raises concerns for dairy industry
Jan Shepel
MADISON – The approval and rollout of one of the coronavirus vaccines has begun – to help health officials fight the increasingly deadly pandemic.
As that happened, many people learned that these vaccines need to be super-cooled to remain viable during transport and storage. Dry ice, the product made when carbon dioxide is treated with cold and pressure and becomes a solid, is a key ingredient in those vaccine s cold-chain requirements.
Dry ice is an important coolant because it remains at very low temperatures, but when it melts it returns to a gas and doesn t cause sogginess in the materials it had been cooling.