Old grain

[Love_In_Da_Brew_Zone]

I just stumbled across 50lbs of 2 row, 20lbs of 40L and a bunch of specialty grains, all whole and uncrushed, that has been stored in my garage, through the seasons and changing temperature, in sealed 5 gal buckets for the last year and a half.
How long does uncrushed grain last? Is it worth using at this point or should I throw it all out and buy new grain?

 

[brewcat]

Smell it. Taste it. If it seems fine, try to brew and check your efficiency. I'd guess it is ok.

 

[friarsmith]

Taste it and compare it to a fresh sample of the same grain at your LHBS. It's probably ok if it's been stored in sealed buckets.

 

[Challenger440]

I just brewed 2 batches with some 2 year old grain stored in sealed buckets in a questionably insulated closet.

Taste it. If it tastes reasonable, roll with it. In my case, my 2 brews came in at 90% and 80% efficiency [emoji41] (biab).