After my last post about the single hop experiment, a number of readers corrected me by accurately pointed out that Mikkeller is not the only brewery doing a series of single hop IPAs. I had neglected Brasserie Charlevoix and their Vache Folle Single Hop Double IPA series. So, as penance I decided I should pick up the two versions currently available (some punishment!!).

In total there are six in the series. I tried the Columbus and the Centennial.Whoa nelly! What a difference. The Columbus has a soft pine and fruit aroma, with a touch of citrus, and a bit of spiciness. Moderate malt aromas of brown sugar, crystal and a hint of toffee. The flavour brings out a soft honey malt sweetness overtaken by a moderate fruity hop bitterness and aroma. The overall impression is balanced, and likely too small for a Double IPA.

The Centennial offers a remarkably different presentation. The aroma is sharp, intensely citrusy and dominated by hop. I pick up big pineapple and some grapefruit in the hops. A background of toffee and crystal malt accents. The flavour is big citrus and feels both formidable and, to be honest, rather one-dimensional.

Neither beer is a great version of a Double IPA, but that is beside the point here. It does succeed in demonstrating the flavour effects of different hops. The two beer are distinctly different (and I must add caveats that brewing, transportation, storage and other handling differences may account for some or much of that diversity). I believe the qualities of each of those styles comes through. I have not brewed with Columbus, but have used Centennial, and I found the same pineapple/grapefruit character.

What most fascinates me is the big shift in malt profile. Again ignoring possible caveats, it is intriguing to consider how a hop may shape malt perceptions. Upon reflection this is not hugely surprising – as perception is all about relative weighting, not absolutes. A more prominent, aggressive hop is going to make the malt seem thinner. That may explain, even more than comparable IBUs, the difference between English and American IPAs. Even with comparable hopping, an English IPA is going to seem maltier and more balanced.

In terms of these two beer, I do wonder if they made their challenge too big by choosing a Double IPA, rather than a regular IPA. The amount of hops in double IPAs are pretty intense, and if you are only using one hop, the shifting effects will be quite pronounced, possibly undermining the overall impression of the beer. In my opinion a well made IPA is plenty hoppy enough to achieve the goals of such an experiment.

That said, I commend this brave Quebec brewer for the series. I hope to see more of them make their way to Alberta. It is interesting to note that Phillips Brewing in B.C. just announced a new “grow hops” single-hop IPA series. Clearly this is a concept that is catching on. This is good news (even if the prairies don’t get Phillips’ products) as I think it both offers unique beer experiences and educates the beer public at the same time.