Answer
Jun 27, 2025 - 12:37 PM
Vaccines that require deep freezing, such as the Pfizer-BioNTech COVID-19 vaccine, should be stored at ultra-low temperatures, typically between -80°C to -60°C (-112°F to -76°F). This ensures the stability and efficacy of the vaccine until it is ready to be thawed and administered. Always refer to the specific storage guidelines provided by the vaccine manufacturer.