Does Star San expire?

[AndrewS]

Its been like 8-9 years since I have done a batch. I have a darn near full bottle from back then that I previously used for sanitizing. Nothing on the bottle indicates an expiration date. I know it works as an acid and it has been left in a sealed bottle at 60-85 degrees F at the extreme ends. Should I buy a new bottle or am I good to go with this one when I get back into the hobby?

 

[flars]

You're good with the Star San you have. The properties of the acid will not change with age.

 

[ncbrewer]

Welcome back to brewing.

 

[mikescooling]

Nope, it's good for a long time