Hoppenberg Uncertainty Principle | River North Brewery

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Hoppenberg Uncertainty PrincipleHoppenberg Uncertainty Principle
Very Good
114 Ratings
Hoppenberg Uncertainty PrincipleHoppenberg Uncertainty Principle

Brewed by:
River North Brewery
Colorado, United States

Style: Belgian IPA

Alcohol by volume (ABV): 9.00%

Availability: Rotating

Notes / Commercial Description:
No notes at this time.

Added by hopfacebrew on 03-12-2012

User Ratings & Reviews
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Ratings: 114 |  Reviews: 28
Photo of BlackHoleBrew42
5/5  rDev +27.9%

Photo of LordRune
5/5  rDev +27.9%

Photo of mthawk97
5/5  rDev +27.9%
look: 5 | smell: 5 | taste: 5 | feel: 5 | overall: 5

One of the my favorite double IPAs. The belgian yeast strain is a great twist on this classic.

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Photo of bokayla
5/5  rDev +27.9%

Photo of iSip
4.75/5  rDev +21.5%

River North Brewery Hoppenberg Uncertainty Principle Belgian-style Double India Pale Ale: That is a whopper of a name, and given I was a physics major I like the inside play on words. But how about the beer? The Belgian style IPA mash up is a tricky style, and I have had few the really come out well. River North's Uncertianty Principle may not fit the style perfectly, but it is a luscious beer not to be missed. All aspects of this brew are outstanding. A must try...

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Photo of Christianuriah
4.75/5  rDev +21.5%

Photo of whynot44
4.56/5  rDev +16.6%
look: 4.75 | smell: 4.25 | taste: 4.75 | feel: 4.5 | overall: 4.5

Very cloudy honey/apricot colored brew with some small yeasty bits slowly sinking and a very nice off-white head that retains very well , producing some decent lacing.
The aroma is mellow but complex with caramel malt, citrus, pine resin, notes of spices and tropical fruit.
The taste is along the same lines but somewhat more assertive. There is so much going on here that it's hard to describe. Up front there is a brief caramel sweetness quickly overtaken by a blast of piney/citrus hops and a spicy, peppery background - coriander, cloves, pepper - all blending in with what seems to be notes of pineapple, mango, quava, who knows what else? The finish brings back a lingering blast of pine resin and spice along with some pleasant alcohol warmth. This is really a winter IPA. For several reasons this one should be enjoyed slowly.
The mouthfeel is amazing for an IPA, medium to full bodied with an almost oily texture.
Overall, This was a very interesting and enjoyable brew, not for the faint hearted lager lovers.

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Photo of ucsbmullet
4.5/5  rDev +15.1%
look: 4.5 | smell: 4.5 | taste: 4.5 | feel: 4.5 | overall: 4.5

Got a bottle at Mile High in early April.

For the high ABV and 130 IBUs, this drank smooth. The belgian yeast kept the hops toned down. The grassiness, grapefruit notes were relatively subdued. The high alcohol is well hidden so be wary if you take down a whole bomber solo.

The color is on the darker side of the IPA spectrum.

Shared with a few folks and it went down very quickly. Another solid newcomer to the Denver craft brew scene.

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Photo of aussiebeer
4.5/5  rDev +15.1%
look: 4.5 | smell: 4.5 | taste: 4.5 | feel: 4.5 | overall: 4.5

Photo of OsoRojo
4.47/5  rDev +14.3%
look: 4 | smell: 4.5 | taste: 4.5 | feel: 4.5 | overall: 4.5

Perfect balance of Belgian yeast and a heady amount of hops....wonderful! Rumor it may be released in 4-pack cans ????

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Photo of danbeam
4.44/5  rDev +13.6%
look: 4.5 | smell: 4.25 | taste: 4.5 | feel: 4.5 | overall: 4.5

Excellent Belgian yeasty smell, tasting notes of sweet caramel, sugar, mealy bread with delicious subway-esque bakery yeasty with a long tapering finish and light spicy floral notes. For a 130 IBU it is phenomenally easy drinking. Bravo. Light, clear, orange look.

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Photo of Mebuzzard
4.4/5  rDev +12.5%
look: 4.5 | smell: 4.5 | taste: 4.25 | feel: 4.5 | overall: 4.5

Well, the name is a mouthfull, and so is the beer.

Pours a nice solid golden color, nice billowing head. Some rocks. Lacing is great

Hops and yeast dominate the nose. White pepper, coriander and clove. Followed closely and powerfully by the hops. Citrus and tropical.

One thing I don't really love about B-IPAs is the emphasis on the B. This one does not fit that complaint. The Belgian flavors/spices (coriander, clove, bubblegum and white pepper) are there and provide a good flavor profile The soft biscuit and hops are what makes this beer really good. Yes, it's hoppy, buth combo of Belgian and American flavors is great.

Nice feel on it. Bitey, but not boozey. A really good beer

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Photo of StoutSnob40
4.29/5  rDev +9.7%
look: 4.25 | smell: 4.5 | taste: 4.25 | feel: 4 | overall: 4.25

Photo of sprestridge
4.25/5  rDev +8.7%

Photo of jaydoc
4.25/5  rDev +8.7%

Photo of Mineo
4.25/5  rDev +8.7%

Photo of Kirby
4.25/5  rDev +8.7%

Photo of ksolekjr
4.25/5  rDev +8.7%

Very well balanced for such a high abv beer.

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Photo of bigotecircus
4.25/5  rDev +8.7%

Photo of funkel81
4.25/5  rDev +8.7%
look: 4.25 | smell: 4.25 | taste: 4.25 | feel: 4.25 | overall: 4.25

Photo of coreyfmcdonald
4.25/5  rDev +8.7%

Photo of cmzgirl
4.25/5  rDev +8.7%

Photo of PabloDerango
4.25/5  rDev +8.7%

Sourced a bottle in Denver, November, 2014.

App: Pours an almost orange-gold color, with minimal head that fades quickly. Opaque, with little effervescence.

Sm: Grapefruit, lemon thyme, followed by sweet tropical flavors like papaya.

Taste: Immediate sweetness dissolves into sticky, floral hops notes. Hops are balanced but definitely less forward than would be expected in a traditional double IPA. The resulting warmth from the relatively high alcohol (9.0%) is nicely balanced by tart, citrusy notes that could be the result of the Belgian yeast? It's almost IPA cross-bred with a saison - a great beer for a warm fall day.

An interesting beer when you're not sure you're ready for a palate-wrecking double IPA, but you want something that has floral hop notes to it. Would match well with Korean or Indian food (though I'd steer away from truly spicy stuff, given the ABV).

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Photo of Kplummer82
4.24/5  rDev +8.4%
look: 4 | smell: 4.25 | taste: 4.25 | feel: 4.25 | overall: 4.25

Photo of SkeeterBoganski
4.23/5  rDev +8.2%
look: 4.5 | smell: 4 | taste: 4.5 | feel: 4 | overall: 4


After doing some very preliminary research, I knew this was the first and only pint I needed to order here...and yes, you read that right: 130 ibus!; I think this is the highest claimed amount of IBUs I've ever drank in a beer; some folks in our party say the beer has a distinct anise flavor...I say it smells like heaven; the color is bright and solid amber; no head and light non-consistent lacing; the nose is like a grapefruit slap in the face; amazingly, this beer doesn't taste as boozy as 9%abv; I'm a huge fan of this beer...kudos for aggressive experimentation.

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Hoppenberg Uncertainty Principle from River North Brewery
Beer rating: 3.91 out of 5 with 114 ratings