Reconstitution Solution for Laboratory Use 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 Bacteriostatic Water Bac Water by Hospira Mountainside Medical Tagged "Sterile Water For Injection" Nucleon Nutrition BAC WATER 10 ml Bacteriostatic Water for Peptides Nucleon Nutrition Peptides Shop Should BAC water be refrigerated or stored at room temperature?