Does tile adhesive expire

[SALL2009]

I am starting some tiling work and have found a number of part used cement based tile adhesives bags which were left overs from jobs over the years.

The packs say an expiry of 1 year, but does it really expire? Or can I use them. They look in good state and still power.

 

[hobhead]

I would bin it, not worth spoiling the job.I have used near the date previously and you can tell it's on it's way off.

 

[foxhole]

You use it to make up any dips or fill voids before tiling with new stuff.

 

[Brigade77]

Cement certainly expires, & the date they set is usually quite accurate.