Help F*ck! Is my SN still ok?

[Crash_Bash_Dash]

I checked my SN moments ago (I haven't checked it for a while) and I discovered A FREAKING TEAR in a package. How the f*ck it has come there!? Just my awful luck... I don't know how long it has been in that state there. It has been in my cupboard in dry and dark environment (I suppose). The substance inside has become rock-hard anyway. Is my SN still okay to use? What should I do now?

Thanks already for the helpful answers!

 

[Macedonian1987]

This SN should definitely be tested. There is no way anyone could tell you how degraded your SN is. We don't know when the tear was made, and how big it is. We can only guess the SN's purity now.

 

[pthnrdnojvsc]

how old is it ? and how long it's been open