How to Store Bacteriostatic (BAC) Water Temperatures, Do's & Don'ts, vialcase.com How to Store Bacteriostatic Water Safely Confused about whether BAC water needs refrigeration after opening? According to USP standards and Pfizer's own guidance, both room temp (2025C) and refrigeration are acceptable Uses of Bacteriostatic Water for Injections and Where to Get It Should BAC water be refrigerated or stored at room temperature? Do you guys refrigerate your bac water after first use? : r Peptides Should BAC water be refrigerated or stored at room temperature?