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 Suppliers: Sterile Water, Syringes & More Bacteriostaticwater.com High Quality 3ml BAC Water for Medical Use Nugenyx Bacteriostactic Water 10ml Laboratory Research Use Rex Research Can bacteriostatic water be refrigerated? 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