Has my SN gone bad?

[darkwater]

My SN says produced 2019, to use until 2023. is it really no longer usable? It is sealed airtight and I don't want to break the lid. Unfortunately, I can't buy a new one.

 

[Praestat_Mori]

There should be nothing wrong with it. Keep it stored as it is.

 

[Deleted member 65988]

If it's not been exposed to anything that is potentially harmful to it for a prolonged period of time then I don't see anything that would've degraded it wiithin that time. Manufactured chemicals like this do tend to last past the expiration date.

 

[darkwater]

Does anyone have any idea how long it should last? I'm only still here because I have it and could leave this world at any time. A bottle of SN in the cupboard really helps me.

 

[NoOneLovesMiMi]

My SN says produced 2019, to use until 2023. is it really no longer usable? It is sealed airtight and I don't want to break the lid. Unfortunately, I can't buy a new one.

I don't know much about SN
But do you have a testing kit for it?

 

[Deleted member 65988]

Does anyone have any idea how long it should last? I'm only still here because I have it and could leave this world at any time. A bottle of SN in the cupboard really helps me.

Should would be a matter of the conditions kept prior to the expiration date but it can last quite a while. The best would be to test it in order to get a clearer answer.