Plucked from the bine, shipped overnight to the brewery, then shipped to me (through the three tier distribution system, of course). Aside from the hop farm and brewery sharing the same land, this is a fresh as it can get... at least in the world of hops and beer. These fresh hop are what is referred to as wet hops.
This is a fantastic beer, bittered with Centennial hops, with flavor and aroma (late additions) provided by both Centennial and Cascade. At 6.7% ABV, the 24 oz bottle makes for a nice relaxing evening (it's like two for one). The Sierra Nevade page gives some additional detail. Gotta love the Centennial, and it just wouldn't quite be an American IPA without the Cascades... Hey, if they work, right?
If you find this beer, it is a worthwhile purchase. And while you are at it, consider purchasing two... or more.