Originally Posted by sfbayjay
Any thoughts about using these guys after all this time? What is the "shelf life" of a vac-sealed hop pack at room temp?
Hard to estimate, really. I usually judge the age/freshness of my hops pellets by their color. Fresh hops pellets are usually a nice healthy shade of green. Yellowed hops pellets are a sign of age and degradation and should be avoided.
Storing hops in the cold is the best option and generally i'd say they're fine if you'll be brewing within six months of any "born on" date. 18 months is probably approaching the end of their usability IMHO, and definitely beyond the peak of freshness.