I absolutely love this beer and want to brew something similar or a clone so I am happy with this thread. I did find an article on New Glarus' website
that says two key things we should look at for this recipie.
1. He spent over 6 months painstakingly perfecting the hop blend alone. Finally utilizing 5 varieties of hops, of which three are not commonly used in American style ales.
2. Moon Man" is dry hopped 2 and a 1/2 times as much as is commonly practiced in dry hopped beer (2.25 pounds per barrel).
We should be able to agree that traditional American Ale hops contain a higher alpha acid. In reading the discription I thought they would just start with an IPA recipie replace the high acid in bittering with a noble hop and call it good(also pair down the grain bill lower OG). However, as a barrel is 31 gal would mean they are using 1.16 oz/gal, we would need to dryhop with 5.8 oz of hops for a 5 gal batch. That is alot of hops!
I originally assumed that they are using an american style hop to dry hop with, but with the amount involed I would propose they are mixing it with a less traditional lower acid hop maybe 25%:75%. It is a profoundly aromatic brew but not as aromatic as I would assume if 6 ounces of a 13% hop were used per 5 galons for dryhoping.
As the original posters friends gave him the list of these hops, they seem to match up with the article a bit. I would postulate that the Riwaka are used for bittering, and for the bulk of the dryhoping as well. Amarillo for flavoring, and two of the remaining for the last minute. They could also be using three hops for dry hopping, with that kind of amount it would not be suprising.
I plan on brewing a partial mash verison of this. Hopefully I can get a recipie together and get it ordered soon.
Any other thoughts on this? Anyone think I am totally off base here?