How to Store Bacteriostatic (BAC) Water Temperatures, Do's & Don'ts, vialcase.com Do you guys refrigerate your bac water after first use? : r Peptides Should BAC water be refrigerated or stored at room temperature? Storage & Reconstitution of Peptides UK Peptides 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 Should BAC water be refrigerated or stored at room temperature?