Should BAC water be refrigerated or stored at room temperature? BACTERIOSTATIC WATER (Bac water) 3ml 10ml Bulk Supply BAC WATER 3ml Zyphera 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 Bacteriostactic Water 10ml Laboratory Research Use Rex Research