Bacteriostatic Water Bac Water by Hospira Mountainside Medical BAC WATER Crescent Chems Research Reta question on cloudiness or is it me : r PeptidePathways Should BAC water be refrigerated or stored at room temperature? Do you guys refrigerate your bac water after first use? : r Peptides 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