Pfizer Inc. and Biontech SE submitted new data to the FDA showing its COVID-19 vaccine’s stability can be maintained at temperatures often found in pharmaceutical freezers and refrigerators: -13°F to 5°F (-25°C to -15°C). That’s cold but not nearly as cold as the mRNA-based vaccine’s emergency use authorization label calls for, which is storage in an ultra-cold freezer at temps of between -112 to -76 degrees Fahrenheit (-80 and -60 degrees Celsius).