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Chaos Theory - BrewDog

Not Rated.
Chaos TheoryChaos Theory

Educational use only; do not reuse.
very good

109 Ratings
no score

(send 'em beer!)
Ratings: 109
Reviews: 75
rAvg: 3.75
pDev: 10.67%
Wants: 10
Gots: 4 | FT: 0
Brewed by:
BrewDog visit their website
United Kingdom (Scotland)

Style | ABV
English India Pale Ale (IPA) |  7.10% ABV

Availability: Rotating

Notes & Commercial Description:
Beer added by: Suds on 05-14-2009

No notes at this time.
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Beer: Ratings & Reviews
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Ratings: 109 | Reviews: 75
Photo of almychristopher
3.8/5  rDev +1.3%
look: 4 | smell: 4 | taste: 3.5 | feel: 4 | overall: 4

this beer pours a an amber color with a nice off white head that recedes to lacing. the aroma speaks of floral hops with a nice malt backing. the taste brings a bit more hop than i'd expect from an english ipa, but very nice malt balance and dry finish none the less. the medium body and good co2 make this a nice drinkable ipa.

Photo of ppoitras
3.58/5  rDev -4.5%
look: 4 | smell: 3.5 | taste: 3.5 | feel: 4 | overall: 3.5

750ml bottle purchased as a single from Julio's, Westboro, MA. Batch 012, best before 8/16/10.

Poured into an imperial pint glass, formed a 1/4" light beige head over the slightly cloudy dark amber brew. Head is quickly down to an uneven layer of bubbles, with sticky slow-falling lace. Aroma is sweet and lightly of earthy hops. Taste is sweet upfront, lightly citrus in the middle, and closes with the earthy bitterness. Mouthfeel is soft and smooth, and drinkability is pretty good. Not quite the cutting edge in-your-face that I was expecting, but a good brew.

Photo of benclimbs
4.12/5  rDev +9.9%
look: 3.5 | smell: 4 | taste: 4.5 | feel: 3.5 | overall: 4

pours amber golden with no head and just a bit of lacing - for some reason all the brewdog beers i was sent were ridiculously flat - maybe a bad shipment? how does that happen

anyway, smell is so classic, hoppy goodness, so much grapefruit, citrus, piney hoppy gooeyness - really reminds me of a west coast ipa

taste is soo fruit hoptastic...not dry british at all...once again, grapefruit, even some ripe berries in there along with some lemon peel, finishes clean and smooth with a balanced bitterness - extra points in my mind just because its a british brewery doing a totally west coast usa IPA

Mouthfeel gets some knocks because of carbonation points...should be a bit more bubbly from a bottle...better in a cask perhaps.

summary - a great adaptation of a west coast ipa from brewdog, a UK brewer striving to make US style ales...boom, you did it, great beer!

Photo of hooliganlife
3.93/5  rDev +4.8%
look: 4 | smell: 3.5 | taste: 4 | feel: 4.5 | overall: 4

pour is light ruby with orange and copper. light cream colored head, light foam, light lacing and retention

faint floral and bitter hops. a bit of booze and light malts. would like some more hops here

nice and very balanced. bitter hops are there throughout but not a smack in the face. light pine and citrus grapefruit through the finish. malts are a bit light with a light read flavor.

has a nice body, nice and heavy with a bit of chew. as for an IPA, this is damn near perfect.

this is my first brewdog ale and i am impressed. it has that UK IPA with an american twist. super easy to drink and a lot of fun. ABV is a bit high, that was my only complaint.

Photo of clayrock81
3.8/5  rDev +1.3%
look: 4 | smell: 4 | taste: 3.5 | feel: 4 | overall: 4

Pours a cloudy gold/light orange body with two finger frothy head that quickly dies. A mild honey/sweet maltish smell along with floral hops. Taste is more of same as this lighter-bodied beer goes down easy, dangerously easy that is. Light sweet malts like honey, caramel along w/ a breadiness and tea leaf note plus floral and bitter hops combine for a mild, easy to drink session beer. Not complex or groundbreaking, but just a nice easy to drink beer that I could have anytime.

Photo of Sammy
3.85/5  rDev +2.7%
look: 3.5 | smell: 3.5 | taste: 4 | feel: 4 | overall: 4

Amber ale, or sort of IPA. Its in the style, its higher than average IPA, and so its above average bitterness for sure than your local British empire beer. Pours medium yellow, with some off-white head. Some citrus taste. Very drinkable, a bit of ageing helped.Above average mouthfeel.

Photo of ZimZamZoom
3.55/5  rDev -5.3%
look: 3.5 | smell: 3.5 | taste: 3.5 | feel: 3 | overall: 4

Poured into a pint glass from a 22.4 oz. bottle. Slightly cloudy amber color, nice thick tan head with abundant lacing.

A nice malty caramel aroma, some piney hops in the background. Also light citrus character with a touch of spice. Aroma is malt forward, not unexpectedly. Taste also is earthy malt first, some caramel, hop flavor is minimal, mostly spiced citrus in nature. Big bitterness in the end though, as the hop bite hits hard and lingers for quite a bit.

This beer is a touch thin, good carbonation and certainly a nice drinkable English IPA.

Photo of Wasatch
3.8/5  rDev +1.3%
look: 3.5 | smell: 3.5 | taste: 4 | feel: 3.5 | overall: 4

22.4oz Bomber
Batch: 9
Best Before: 08/16/10

Poured into a chalice a nice golden orange color, some carbonation, nice little fizzy off-white head, with some sticky lacing left behind. The nose is malty, very slight hop, some citrus. The taste is malty, some hop notes, sweet, bitter, some citrus. Medium body. Drinkable, a tasty brew, but was expecting more.

Photo of cvstrickland
2.9/5  rDev -22.7%
look: 3.5 | smell: 3.5 | taste: 3 | feel: 2.5 | overall: 2

The slope-shouldered bomber bottle pours an orange-tinted golden brew with a short cap of grainy pale ecru foam atop that fizzes out faster than it took me to type this sentence. Really. The skimmy ringlet that outlines the naked surface of Chaos Theory deposits token drips and drabs of leftover foam onto the sides of a shaker pint glass, resulting in minimal lacing.

The aroma is musky mix of fruity apple and melon-like notes and a twist of green herbal spice.

The taste is mildly fruity and sweetly malty with a little dose of unflavored bitterness for balance. Alcohol is thinly masked and chemically unpleasant, contributing to the fruitiness a bit before scouring my palate clean. Belly warming is almost immediate and palpable.

The drink is medium in body and undercarbonated, leaving me with little desire to even finish the first pour from the bottle. Avoid.

Photo of BlackHaddock
3.82/5  rDev +1.9%
look: 3 | smell: 3.5 | taste: 4 | feel: 4 | overall: 4

Third BrewDog beer of the evening, poured into my lovely 'Judas' glass, almost a full year of life left according to the label.

Murky dull, deep, old gold/muddy terracotta coloured body with an off-white head on top.

Smells of hops and more hops, maybe a hint of malted barley in there too.

Good hoppy taste, not over the top, just heavy on the hops. The ABV is feelable and sits well within the taste and structure of the beer.

Could do without some of the condescending blurb on the label, but the beer is very good.

Photo of WesWes
3.78/5  rDev +0.8%
look: 4 | smell: 3.5 | taste: 4 | feel: 4 | overall: 3.5

The beer pours a nice amber color with a thick frothy offwhite head that slowly fades to lacing. The aroma is decent. It has a complex malt aroma of pale, Carapils, and bisquit malts along with a mild hop nose that balances the aroma nicely. The taste is good. It has a smooth, malt centric flavor with a solid hop taste in the finish. It's got a fresh hop taste, but nothing over the top like most American IPA's. Instead, the malts provide excellent character and appropriate balance. The mouthfeel is fine. It is a full bodied beer with adequate carbonation. This is a good drinking beer. It's nothing exceptional, but it's full of flavor and easy drinking even at 7.1%.

Photo of atsprings
4.08/5  rDev +8.8%
look: 4 | smell: 3.5 | taste: 4.5 | feel: 4 | overall: 4

22.4oz bottle into a Duvel tulip at Flying Saucer pours a crisp dark orange with a decent khaki head that lasts and leaves spotty lacing on the glass. Aroma is a decent balance of sweet malts and funky hops. The taste is funky bitter hops up front with a nice malt backbone, very interesting and unique, quite tasty. The beer is medium bodied with a slight alcohol presence. This is a very enjoyable, unique beer.

Photo of Travlr
3.76/5  rDev +0.3%
look: 4 | smell: 3 | taste: 4 | feel: 4 | overall: 4

Appearance is deep amber orange with a large thick off white head and excellent lacing.
Smell is very subtle, just a bit of citrus and some floral notes.
Taste is rich malt, grapefruit, and a background of black pepper. Dry, with a moderately bitter finish.
Great body, very nice IPA, not over the top, complex flavor.

Photo of Offa
4.1/5  rDev +9.3%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4.5

This is an excellet, solid IPA, with firm, lightly complex flavour, and good balance.

Copper-amber, faintly hazy, it has a medium pale beige head that slowly shrinks to thin, frothy top and leaving a little nice, frothy lace.

Aroma is subdued but still characterful, with firm malty grain, fruity and jammy with citrusy hops leaning to the orange and marmalade. There is a hint of pine sap and herbal leafiness as well.

Taste is firmly malty, raisiny and lightly but clearly toasty and earthy with citrusy hops (bitter, burnt orange, orange zest, hint of grapefruit), hints of resin and herbal, leafy spiciness. Overall, bitterness and sweetness are balanced, with bitterness just taking over the finish slightly, with a briefly spicey bitter finish, before settling back into a lingering, balanced aftertaste with even bitterness and sweetness. Elements are integrated well and all hold up nicely. It has a light fullness with a hint of oiliness without relaly bieng oily.

Photo of cypressbob
4.2/5  rDev +12%
look: 4 | smell: 4 | taste: 4.5 | feel: 4 | overall: 4

330ml bottle, served chilled (in the same glass I've been using for all my beer notes over the last week or so, I will dip into the collection and change things a little)

It pours with a rich, slightly hazy amber body. Whispy off white head soon settling to a modest half finger.

Not a huge nose, English hops beefed up with an almost pilsner-esque Sazz aroma. A touch medicinal but only very slight, some fruity notes too but nothing overpowering

On the palette. huge biscuity dry lingering hops. A whack of quinine and grapefruit acidic notes, followed by a lasting pleasing dryness on the finish. Backbone of pale malt with a touch of alcohol too. Not big on aromas but hugely hopped bitterness on the palette. Some esters lingering around the mouth punctuated by bills, ballsy bitterness

Photo of NittanyBeerFan
3.85/5  rDev +2.7%
look: 3.5 | smell: 3.5 | taste: 4 | feel: 4 | overall: 4

Got this one in a trade with stoutfiend27...Thanks Stephen!

A: No head to speak of, but the color is a beautiful crisp copper...any darker and this would look like a DIPA. Despite the lack of head, there is a surprisingly full laced pattern.

S: Sweet smell of caramel malts come through in a big way. There are also some earthy and citrusy hops with a decent amount of hop bitterness that pushes the initial caramel malt character away.

T: Sticky and bitter citrusy hops with some lighter earthy notes take control of the palate early. There is a lot of alcohol in this for an IPA, but none of it is noticeable in any way. The malt backbone is almost DIPA-like in the depth of its caramel flavor.

M/D: Surprisingly smooth, as the carbonation is low (expected after the lack of head). The feel is sticky and resinous, as the beer stays with you after the swallow. The hop character was good and fully. Very enjoyable overall.

Photo of Gmann
3.5/5  rDev -6.7%
look: 3.5 | smell: 3.5 | taste: 3.5 | feel: 3.5 | overall: 3.5

Pours a brown color with honey hightlights, a rather small and whispy head that dissipates into a light ring. Aroma is of toasted malt, fruity, caramel, and a light floral hop. The taste starts off with a bready malt, has a weird sour spiciness, honey, mineral water and some herbal notes. The hop flavor has some tropical fruit notes, piney with a touch of resiny bitterness. The brew has a moderate body with semi-soft carbonation; starts off sweet but finishes bitter. A malty AIPA for sure, though not overly so. Seems like a dirty AIPA since there are quite a few flavors from the malt. The hop profile is nothing special. A unique take on an AIPA.

Photo of fullsweep
2.93/5  rDev -21.9%
look: 4.5 | smell: 4 | taste: 2.5 | feel: 3 | overall: 2

330 mL brown bottle poured into a pint glass.

A: beautiful, clear, brown/amber with hints of orange in the color. Very thin/no head but a bit of lacing.

S: fruity, hoppy, with melon, pumpkin, rutabaga/swede and some sour/ripe hints in the fruit aromas.

T: again fruity but overpowered by a strong hoppy bitterness--too bitter for my tastes.

M: sticky/syrupy with light carbonation

D: not a bad beer, but overall not one I'll drink again due to the high bitterness/hopped factor.

Photo of vrazionale
4.1/5  rDev +9.3%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4.5

22.4 oz bottle at refrigerator temperature poured into a snifter. Bottle reads: "Batch 012, Best Before 08/16/10."

A - Burnt siena brown body with a foamy cream-colored head that backs down to splotches along the edges.

S - Floral, fruity, and spicy. The fruit character is stone fruit all the way - peach and apricot. The sweet malt profile reminds me of layered, complex heather honey. Quaffable and unique - altogether a very accessible and enjoyable nose.

T - A touch of bitterness from the hops, but by and large the hop character manifests itself as fruity and floral. I find the flavor profile to be very balanced and well-layered - everything just sits well together. Alongside the mildly bitter finish, I am again reminded of the richness and complexity of a darker heather honey.

M - The carbonation in this brew is pretty spot-on. Just enough to lift the heaviness of the malt character off of the palate, leaving behind the more subtle and understated flavor notes.

D - I thoroughly enjoy this brew. It's a refreshing change of pace from well-hopped and well-malted beers that have no appreciation for subtlety. On a relatively unrelated note, I have no idea why this brew is called "Chaos Theory." The pseudo-didactic description of chaos theory on the bottle does little to illuminate why the folks at BrewDog have named this beer Chaos Theory. At any rate, do yourself a favor and find this brew, along with some Cabot Clothbound Cheddar, some good butter, and a freshly-baked loaf of white bread, and make a grilled cheese to eat alongside this delicious brew. I'm fairly certain that will be a meal that you will not regret.

Photo of DerBayer
3.54/5  rDev -5.6%
look: 5 | smell: 3.5 | taste: 3.5 | feel: 3 | overall: 3.5

Appearance of this one is extremely enticing - it s dark amber with a ruby tinge.

The smell is strongly of hops and lots thereof - very bitter. The taste is HOPS HOPS HOPS and lots thereof with little balancing malt sweetness

Mouthfel is a bit too dry for my liking but carbonation is adequate

Drinkability is OK overall

Photo of thepeter
4.17/5  rDev +11.2%
look: 4 | smell: 4.5 | taste: 4 | feel: 4.5 | overall: 4

A - Deep orange golden in color. Nice head but turns to film fairly quickly, however left some fantastic lacing.

S - Fruity, grapefruit and tropical fruits, sappy pine needles, honey and floral notes.

T - Very similar to the smell. The fruits all hit you at the beginning with a nice clean bit of pine hops. The hop flavor escalates to a pleasantly bitter and flowery grapefruit rind all the way to the aftertaste.

M&D - Very smooth and easy to drink. The carbonation is Excellent for a bottled beer. More full bodied that many IPA's but not heavy by any means. I can (and will) drink a couple of these. My favorite Brewdog IPA.

Photo of crowncapcollect
4.25/5  rDev +13.3%
look: 4 | smell: 4 | taste: 4.5 | feel: 4.5 | overall: 4

330ml bottle into straight glass

Orange butterscotch colour. Nice head, but fades quickly. Strong hoppy American craft IPA taste, but not over-carbonated. Very tasty. The hoppy aroma reminds me of marijuana (again). Another great BrewDog IPA, and better than Hardcore in my opinion, this isn't sweet, and the alcohol just doesn't seem to be there, yet at 7.1% it clearly is. Nice one.

Photo of mdagnew
3.8/5  rDev +1.3%
look: 4 | smell: 4 | taste: 3.5 | feel: 4 | overall: 4

330ml bottle bought from GapWines, Belfast..

Poured a nice bright clear coppery orange colour. Creamy head poured small but quite thick then faded to light covering with thick edging. Barely any carbonation... patchy lacing...

Aroma - Strong juicy fruits (oranges, apricots, pinepples, pears) mixed with a good pine hop note, lots of resiny sap, quite rubbery, cut wet grass, caramel and biscuit malts, herbal and light medicinal notes, faint alcohol whiff, hint of iron...

Taste - Overripe (tropical ?) fruits (pineapples, grapefruit, apricots, light melon), slightly harsh pine and citric hop bitterness, metallic notes, honey and caramel sweetness, light biscuity malts, peppery, some breadiness, quite floral...

M&D - Fairly smooth with a slight syrupy note then a little sharpness... light / medium bodied... pretty quaffable for 7.1%

Overall - A pretty decent IPA although there are one or two off flavours... worth a try..

Photo of Bung
3.98/5  rDev +6.1%
look: 4 | smell: 3.5 | taste: 4 | feel: 4 | overall: 4.5

Fairly bright orange pour. Limited white head, disappears quickly. Aroma not overpowering with hops, some malt, must and citrus/pear. Malt and citrus fruit is present with nice balance to the piney hops. A little smokeyness to the bitter finish. Does not linger too much either. Nothing overpowering and quite drinkable, yet not outstanding in any way. The suble burnt/smoke is a nice quality. Worth trying.

Photo of oberon
3.68/5  rDev -1.9%
look: 4 | smell: 3.5 | taste: 3.5 | feel: 4 | overall: 4

My first stab at the BrewDog line of beers.Poured into a imperial nonic a clear bronze with a fluffy two finger white head that settled into a soapy-like mass.Big English malt and hop aromas,sweet biscuit intertwined with leafy/herbal hop notes with a tinge of iron.The flavors to me are dominated by English malt up front,lightly sweet and biscuity with that light iron/metallic presence,the hops come late with a herbal,"green" smack.If there was such a thing as a IEPA this would be it,pretty good.

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Chaos Theory from BrewDog
85 out of 100 based on 109 ratings.