BAC water usage

According to the rules set by drug makers an opened vial shouldn't stay in use past a month. Yet from my experience the kind made under tight controls holds up fine for three months or longer when I stick to clean habits like grabbing a fresh needle each time cleaning the top with alcohol on every draw and storing it inside a sealed clean container. I put mine in the refrigerator even though that step isn't required because steady cool conditions and no light seem to limit germ growth while keeping the preservative effective longer than changing room temps would allow.

I came across a discussion thread about findings on how bacteriostatic water holds up across different conditions for four months. It was pointed out by another user. A private outfit that runs tests has begun sharing some results openly with everyone. Their initial release examines how the water breaks down over time.

I appreciate you sharing this. It would have been nice if the test included pH levels too, yet it backs up the common opinion that you keep going with it right to the end.

I opened a container two years back and kept going with it even though the date on it had passed a year earlier. I only wrapped up the last bit seven days ago. The thirty day guideline was something I heard about well after I had already started on that outdated vial. This is just my own story, not any kind of guidance.