I held the bottle of Vienna Lager up to the light and the color looks to be quite a bit lighter than say, Jamil's Vienna which has some Carafa in it. I would agree that more of that grist would/should be Vienna (it is a Vienna Lager afterall) and then Munich and a small amount of Carared. CaraRed is a crystal malt when it comes down to it which is technically not correct for the style but whatever. I'm drinking my Oktobefest right now where the base malt is 50/50 pils and Munich 10 but then I added 4 ounces of CaraMunich (a crystal malt and not authentic for the style) and some Melanoidin and this Oktoberfest came out really nice.. I'm looking forward to the SN Vienna it either way.
I'm going to guess you're O-Fest will be better than the Spaten... I got a 6er of that last year and the beer was a SKUNK BOMB...Stupid green bottles... I was so mad. I dumped it.
Yes your caramunich would be out of style but so would the Melanoidin.... I think Marzen / Oktoberfest is good with a bit of crystal and/or melanoidin. To be authentic you'd probably need to do a triple decoction, swear allegiance to the kaiser and polka while making it.
Edited by johnpreuss, 20 September 2014 - 05:43 PM.