I was at a little hole in the wall store that sells brewing supplies. They had some old hops that they were giveing away for free so I took them on the off chance they could still be good. The store owner wasn't sure how old but would guess about 3 years or so. They are packaged in nitrogen and sealed. The only thing is they were never kept refregerated. I know from searching that hops degrade fast when not stored right but wanted to know if these were truely junk or are still useable. Any thoughts on this?