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 Should BAC water be refrigerated or stored at room temperature? I never fail to recon at all times. Room temp hospira bac water and vial for the win !!!! The longer water in a bottle is stored at room temperature, the more bacteria will grow," says one expert. https: bbc.in 4il7ZUp Do You Refrigerate Bac Water TikTok