Just found half a bottle of Nutrabaits n-butyric acid in my old bait box so must be a good few years old.

Bin or use?

Smells like something has died as usual so isn't coming in the house!

In reply to Post #1
NBA has a shelf life of 36 to 60months, depending on source

In reply to Post #1
Be difficult to gauge if it had gone off by smelling it

Although on a serious note I have found it loses It's smell over time, although I don't know If that makes any difference as I understand it's the acidity that does the attraction