I recently did my first batch of beer: Oktoberfest (True Brew kit). Brewed up the wort, fermented and bottled to a T. When it came time to open I was immediately encouraged by great aroma, great color, carbonation and head retention. I was certain I had done everything right according to the recipe and had achieved a great beer.
Upon tasting I was slightly disappointed by a less characteristic light flavor. I'm wondering what I did in the process to cause this? The beer is not bad, just not at all what I expected, very bland. Perhaps it's the brew kit itself? I usually expect my Oktoberfest's to have a richer full bodied flavor while this Oktoberfest drank more like a very light bodied smooth Amber Ale.
Some important notes: The gentleman at the home brew supply store switched out the initial Lagering yeast of the kit and replaced with an ale yeast so it could be fermented and bottled as an Ale would be versus as a Lager at cooler fermentation. My wort was more concentrated, I believe 2 gallons in full, and then added to 3 gallons of water. Fermented for 9 days, aged in bottle for another 10.
Just want to know what I need to correct in my methods before moving forward with my next batch, I am expecting greatness here, but realize the time it takes to achieve it. I appreciate any response in advance, thank you!