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 Government health guidelines confirm that leftover poultry stays fresh for only three to four days when stored at temperatures below 40 degrees Fahrenheit. Leaving refrigerated meals out past this strict window drastically HCG (Human chorionic gonadotropin): Uses, FAQs, Warnings & More GoodRx Do you guys refrigerate your bac water after first use? : r Peptides