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Dry ice is a hot commodity because of the vaccine

Dry ice is a hot commodity because of the vaccine Massachusetts suppliers are helping to keep Pfizer-BioNTech shipments at minus-94 degrees Fahrenheit. By Anissa Gardizy Globe Staff,Updated December 17, 2020, 10:36 a.m. Email to a Friend doses of a COVID-19 vaccine from Pfizer and BioNTech were administered across the United States on Monday, it marked the beginning of a mass distribution effort that hinges on an unlikely product: dry ice. The Pfizer-BioNTech vaccine needs to be kept at minus-94 degrees Fahrenheit, far beyond the capability of traditional freezers. But dry ice ― which is frozen carbon dioxide ― has a surface temperature of minus-109.3 degrees Fahrenheit, which makes it a sought-after product for shipping and storing the vaccine.

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