What does the Date mean on Blue Circle Hydrated Lime ??

[thesled]

Does anyone know what the date stamped on the side of Blue Circle Hydrated Lime is?
Is it a packing date or a 'Use By' date? It doesn't say. I can't find anything official from Blue Circle/Tarmac. A lot of their product info seems to have gone off line.
I was looking out for a new bag and one B&Q I went to said all their bags were out of date (but I never actually saw them)
In another B&Q they had plenty bags but they were all dated September to December 2023. Don't know if this means they are expired. (I've seen them trying to flog loads of out of date plaster and cement).
All seems a bit odd really.
Thankyou !

 

[noseall]

Does anyone know what the date stamped on the side of Blue Circle Hydrated Lime is?
Is it a packing date or a 'Use By' date? It doesn't say. I can't find anything official from Blue Circle/Tarmac. A lot of their product info seems to have gone off line.
I was looking out for a new bag and one B&Q I went to said all their bags were out of date (but I never actually saw them)
In another B&Q they had plenty bags but they were all dated September to December 2023. Don't know if this means they are expired. (I've seen them trying to flog loads of out of date plaster and cement).
All seems a bit odd really.
Thankyou !

As long as it's powdery, it will be fine.

 

[^woody^]

IIRC, the "Use by" date of lime is a few million years.

The date on the bags is part of the manufacturering QA process

 

[thesled]

OK thanks folks.
I think the short answer is I'll buy the newest bag I can get and go off condition.
It does go off though, the stuff I chucked was no longer white and had gone yellowish and a bit clumpy.
Was about four years old (open paper bag, though reclosed).