Bacteriostatic Water Overview, Application & Uses Lesson Study.com Your eyes are your first line of defense. Good BAC Water: Crystal clear, odorless (faint alcohol scent), and painless. Bad BAC Water: Cloudy, particulate matter, strong chemical smell, or severe burning. Here is how you reconstitute any peptide There is no universal formula for reconstituting peptides. The amount of bacteriostatic water you use depends on the peptide, the dose you're running, and how Should BAC water be refrigerated or stored at room temperature?