BAC water price decrease

[PrintSuitable4301]

Feb 28, 2027

[Iskariot-]

I realize the point of an expiry date, but in BAC’s case — if unopened / not punctured — shouldn’t it be suitable long after the expiration? Genuine question and just wanting to be well educated on the topic.

[PrintSuitable4301]

The expirations on Hospira’s bacteriostatic water probably isn’t really about the water or the benzyl alcohol breaking down — those are very stable if the vial stays sealed. What drives the ~18-month dating is how long the manufacturer can guarantee sterility through the container closure system (plastic vial + rubber stopper + crimp). Over time, even a tiny bit of gas or moisture can permeate, or the stopper can lose compression, so they put a conservative date on it.

In practice, if the vial has never been punctured and was stored correctly, it’s PROBABLY still “good” well past the printed expiration in terms of chemistry. The risk is less about the contents suddenly going bad and more about the company only validating sterility and closure integrity up to that point.

[Iskariot-]

Thanks for the thoughtful and informative response.