Optimally prepared for adherent/suspension cell culture applications such as media and buffer preparation, water systems, incubators and for the preparation of reagents for chemical analysis or synthesis. Our cell culture water eliminates endotoxin concerns as it has no detectable Endotoxins (below the detection threshold of <0.005EU/mL) and contains no detectable gram-negative bacteria. The water is prepared by distillation, 0.1 micron sterile filtration and steam sterilization directly in the dispensed bottles.