BACTERIOSTATIC WATER How to Store Bacteriostatic (BAC) Water Temperatures, Do's & Don'ts, vialcase.com CANLABS: Does BAC Water Expire? Have had for a year in fridge. : r Peptides Bacteriostatic Water vs Reconstitution Solution Guide 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