> ## Content Index
> Fetch the complete content index at: https://www.fdaweb.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# Pfizer/BioNTech Seek Warmer Vaccine Storage Approval
- URL: https://www.fdaweb.com/pfizer-biontech-seek-warmer-vaccine-storage-approval/
- Published: 2021-02-19T12:00:00.000Z
- Updated: 2026-09-14T16:47:40.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5148706

Pfizer and BioNTech have submitted new stability data to FDA to permit their Covid-19 vaccine vials to be stored at warmer temperatures than their original authorization allowed for a total of two weeks as an alternative or complement to storage in an ultra-low temperature freezer. The data demonstrate vaccine stability when stored at -25°C to -15°C (-13°F to 5°F), temperatures more commonly found in pharmaceutical freezers and refrigerators, the [companies say](https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-submit-covid-19-vaccine-stability-0?ref=fdaweb.com). Currently, the labels for vaccine state that the vials must be stored in an ultra-cold freezer at temperatures between -80ºC and -60ºC (-112ºF to ‑76ºF).