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Chaos Theory - BrewDog

Not Rated.
Chaos TheoryChaos Theory

Educational use only; do not reuse.
very good

75 Reviews
no score

(Send Samples)
Reviews: 75
Hads: 109
Avg: 3.76
pDev: 10.64%
Wants: 13
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.
View: Beers (104) | Events
Beer: Reviews & Ratings
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Reviews: 75 | Hads: 109
Photo of Knapp85
2.3/5  rDev -38.8%
look: 2.5 | smell: 2.5 | taste: 2.5 | feel: 2.5 | overall: 1.5

This poured out as a copper color with some minimal head. There wasn't any lacing on this one at all. The smell was earthy and really didn't have much of a hop aroma to me at all. The taste was the same way, it was mostly on the malt side and not even close to having enough of a hop bitterness in my opinion. The mouthfeel was kind of on the flat side. Overall this beer was really disappointing. Very surprised at how unimpressive this was coming from a brewery who usually makes a killer IPA.

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Photo of cvstrickland
2.9/5  rDev -22.9%
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.

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Photo of Arbitrator
2.9/5  rDev -22.9%
look: 3 | smell: 3 | taste: 3.5 | feel: 2 | overall: 2

Chilled 500mL bottle into a glass. Best before 08/10. Purchased at Whole Foods Los Altos against my better judgment. I can't stand BrewDog. But I was basically pushed into it on the buyer's strong recommendation.

A: Pours a clear amber body in my Stone tulip. Half a finger of light beige head that retains decently well, leaving some scattered bubbles and a medium collar on the edge when all is said and done.

S: Biscuit malt, earthy hops. Some grass and a light spice note.

T: Biscuity up front. A touch of caramel. The hops take over as a lightly earthy flavor, with some grass decorating the flavor. Lemony citrus and light spice in the finish; I can't exactly place it, but I admit it's pleasant. Strong lingering bitterness.

M: Strong, sticky bitterness and hop oils after the swallow is over. Light-medium bodied, with slightly low carbonation that is somewhat velvety.

D: More bitterness than hop flavor. I like the Great Lakes interpretation of this style a lot, so I'm comfortable calling this one a pretty mediocre attempt. At least I didn't pay much for it.

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Photo of fullsweep
2.93/5  rDev -22.1%
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.

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Photo of dgilks
3.01/5  rDev -19.9%
look: 3.25 | smell: 2.75 | taste: 2.75 | feel: 4 | overall: 3.25

Cloudy golden orange colour with a smooth, off-white head. Good head retention and lacing.

Very light hop aroma. Some acetaldehyde. Lightly grainy. Not good.

Slightly grainy malt. Crisp, clear bitterness. Light tropical hop character. Disappointing and really quite poor for a Pale Ale yet alone an IPA.

Medium-light body with moderately-high carbonation. Fine.

Not a good IPA. I was really looking forward to this but the lack of punchy hop character really lets it down.

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Photo of Diomede
3.05/5  rDev -18.9%
look: 3.5 | smell: 3.5 | taste: 3 | feel: 3 | overall: 2.5

Shared with a good bud, thanks for the bottle.

Off to the review...

Appearance was nice...a solid amber color, nice one-ish finger head on a mildly aggressive pour.

Aroma of malty hoppiness. A bit of a honey sweetness in the mix as well.

Flavor is definitely more bitter/hoppy than anticipated. I mostly get a strong bitter flavor over anything else. Not really picking up many other flavors.

Mouth is a bit chewy, especially as it warms. Develops a syrupy quality as you go along. Not a bad thing, just a bit different for an IPA.

Overall, a solid, drinkable IPA with some pretty bitter qualities. Alcohol probably prevents it from being sessionable (or maybe just the bitter), but still a solid offering from BrewDog.

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Photo of bark
3.08/5  rDev -18.1%
look: 3.5 | smell: 3 | taste: 2.5 | feel: 3.5 | overall: 4

The colour is deep amber (25 EBC), the liquid is clear. The two finger off-white head is airy and uneven. Some lacing occurs.

The smell is strong. Alcohol, honey, sweet candy, harsh hoppy notes. Not much bitterness. Flowers, blackcurrant bushes and hints of cat litter.

The taste is first bitter. However, the bitterness fades quickly, leaving room for sweet flowery notes with hints of white currant, tobacco, unripe raspberries and old-fashioned butterscotch. Medium body. The aftertaste got some alcohol, toffee, hints of coffee candy and dry flowery notes. Some harsh hops and hints of lecture. Tobacco and pelargonium leaves in the finish.

The carbonation is medium strong, the small bubbles smooth and long-lasting.

A quite nice IPA, however I think it is more American/New World than English. I had a problem with the harsh dry notes that probably emerges from the dry hopping.

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Photo of Evil_Pidde
3.29/5  rDev -12.5%
look: 5 | smell: 3.5 | taste: 3 | feel: 3.5 | overall: 3

A: Pours clear copper with a large off-white thick and creamy head that settles into kick-ass lacings.

S: Caramell malt, only somewhat sweet together with lots of floral hops, more American than English actually. Citric and a bit piney. Grassy.

T: the caramell malt is a bit sweet, the hops are dominated by the American-style citric and piney vibe. There is a healthy dose of bitter hops as well. Honey and grass in the back.

M: The aftertaste is problably way better than the taste, ling bittermand balanced with sweetness. Body is medium while carbonation is medium but smooth.

O: Very nice IPA, but this is American, not English. The ratings would be higher if I was rewieving an American IPA.

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Photo of somestranger
3.33/5  rDev -11.4%
look: 4 | smell: 3.5 | taste: 3 | feel: 3.5 | overall: 3.5

Testing this beer well chilled, poured from a bottle into a shaker glass.

A: A slight turbid, dark yellow beer, creating a pretty thick and foamy head when poured into the glass. When twirling the glass a lot of small bubbles appears beneath the foamy head telling you there should be plenty of carbonation going on in here.

S: A very hoppy smell appears at first, then turning into a little sweeter malty tones after a while.

T: The taste differs somewhat from the smell. The fruity bitter tones found in the smell can't be found tasting it, it's more of a after-bitter taste. I did expect a more balanced bitterness from the beginning to the end.

M: The long lasting bitterness is real nice. I did though expect a more bubbly&sizzling feeling from the appearance of this beer.

O: A powerful IPA loaded with nice bitterness. The downsides i find is that it is not that well balanced as i did expect, neither the bubbly&sizzling mouthfeel i get from the appearance of it.

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Photo of eriktoyra
3.35/5  rDev -10.9%
look: 3 | smell: 3 | taste: 3.5 | feel: 3.5 | overall: 3.5

A: Pours a copper colored fairly clear liquid into the glass. The three finger high head is foamy with fairly big bubbles. The head stays intact for a while before it slowly runs down leaving a ring of lacing at the top of the glass.

S: Smells like autumn leaves, grass and blackberries. Delicate hints of pine and floral hops. Grapefruit.

T: Tastes caramel malts, some sweet tones of honey, red berries (strawberries) with a long and bitter after taste. Peppery finish of alcohol.

M: Medium body with medium to strong carbonation that tickles the tongue.

O: Not a bad IPA at all, but not that special either.

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Photo of Moonraker7
3.4/5  rDev -9.6%
look: 3.5 | smell: 3.5 | taste: 3.5 | feel: 3.5 | overall: 3

A: Looks great, nice amber color, nearly no head.

S: Smells fruity, very hoppy, lots of grapefruit, flowery also.

T: Taste follows the smell. Very flowery, lots of hops and grapefruit. Very bitter. Similar to an IPA.

M: Average amount of carbonation.

D: I wouldn't drink more than one at a time, it's not bad, but it really just reminds me of a mediocre IPA. This beer leaves a strong bitter aftertaste. Given the cost, this isn't something I would buy again.

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Photo of champ103
3.42/5  rDev -9%
look: 3.5 | smell: 4 | taste: 3 | feel: 3.5 | overall: 3.5

A: Pours a copper reddish color. A two finger, bubbly white head forms. The foam recedes in a second, and leaves light lace.
S: Floral and grassy hops up front. Light citrus. Sweet caramel. Doughy and biscuit malt. Really well balanced, as an English IPA should be.
T: Light citrus with a strange bitterness. Rough and grainy malt. Dry moldy wood. Light smoke. Not bad, but odd.
M/D: A medium body with crisp carbonation. Not hard to drink. Though the ABV catches up with you.

A pretty good attempt at an English IPA. Well balanced. There is nothing wrong with this, it just does not do it for me. Still, something that is worth a try.

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Photo of JRed
3.43/5  rDev -8.8%
look: 4 | smell: 3.5 | taste: 3.5 | feel: 3.5 | overall: 3

Dark, murky orange-amber in body with white bubbly head. English aroma of butter, light fruit, caramel. Buttery flavor with caramel, butterscotch, light fruit, alcohol booze towards the finish. Medium bodied with an oily slickness on the palate. A strange, malty drink that does defy many styles. The caramelized sugar is a bit much towards the end.

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Photo of Gmann
3.5/5  rDev -6.9%
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.

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Photo of WVbeergeek
3.53/5  rDev -6.1%
look: 4 | smell: 3.5 | taste: 3.5 | feel: 3.5 | overall: 3.5

Why is this still being sold at Bocktown for top dollar it's an English IPA, the label doesn't say what it is. I have a buttery/not hoppy ale from Scotland. WTF? Best before 8/16/10 Pours deep semi clouded apricot amber with a cream head forms fine bubbled with even lacing. Aroma has stale hops with hints of cardboard and caramel malt hidden amongst the old hops. Flavor brings on hints of butterscotch and spicy herbal hops, not bad actually. A strong pine bitterness almost resinous like amongst the faded hops there's still some strong hop bitterness and flavor. Not green but in this english style IPA the hops have acted as a natural preservative, this is probably closer to what the original was like. Mouthfeel is dry with bitterness medium bodied ale, any American IPA I've found this old is undrinkable and I don't feel this way about this offering. Overall impression I need to try this fresh but this beer is decent a solid EIPA. I will try more Brewdog because everything else I've had has been solid.

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Photo of DerBayer
3.54/5  rDev -5.9%
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

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Photo of ZimZamZoom
3.55/5  rDev -5.6%
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.

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Photo of SFLpunk
3.55/5  rDev -5.6%
look: 3.5 | smell: 3.5 | taste: 3.5 | feel: 4 | overall: 3.5

24.4oz brown glass pry-top bottle. BB 8/16/10.

Copper/amber with a thin white head. Aromas of biscuit, fruity yeast and citrus hops. Palate is clean with lots of British style fruity flavors and a crisp, bitter finish. Tastes like a great ESB or an extreme English IPA. Pretty good, not my favorite from the brewery.

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Photo of flyingpig
3.56/5  rDev -5.3%
look: 4.5 | smell: 3.5 | taste: 3.5 | feel: 3.5 | overall: 3.5

Sampled at Brewdog Glasgow on-tap.

Clear amber with a half inch foamy white head that has good retention.

Mix of pine like hops and a mild, tropical fruit aroma that is coupled with a malty smell. It's rather sweet and pleasant, just unusual at the same time with a little bit of wheat and some floral notes.

More bitter than the nose with the tropical fruit & pine flavours (not as strong as in nose) being followed up by a strong bitter presence & some sweet malts.

Light side of medium body. Smooth, dry & was rounded of by a quite bitter finish.

A nice, highly drinkable beer that I would compare to Punk IPA but with less hops & a little more bitter in the finish. Nice but not the best from the brewery.

1001 Beers to try before you die:

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Photo of Hopilator
3.57/5  rDev -5.1%
look: 3.5 | smell: 4 | taste: 3.5 | feel: 3 | overall: 3.5

Poured this beer into a pint glass, revealing a reddish amber brew, with a short head. Very little hop aroma for the nose, well balanced malt flavor on the tongue, caramel, low carbonation. Moderate bitterness, little lacing, all in all, an English style IPA if I've ever had one. A little disappointed that this isn't a bigger beer, with a little more of just about everything.

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Photo of Teleweizen2
3.57/5  rDev -5.1%
look: 3.5 | smell: 4 | taste: 3.5 | feel: 3 | overall: 3.5

A - pours a dark coppery gold with some orange highlights and a dense 3 finger off white head.

S - grassy hops and some bready and caramel malt undertones.

T - intense grassy bitterness. Very floral. Nicely balanced by the malts.

M - medium bodied. High carb.

D - abv and the hop profile do seem a bit much for an English IPA but it fits American standards quite well.

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Photo of ppoitras
3.58/5  rDev -4.8%
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.

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Photo of salvo
3.62/5  rDev -3.7%
look: 3.5 | smell: 4 | taste: 3.5 | feel: 3.5 | overall: 3.5

Single-hop IPA. Not nearly as robust or complex as Punk or Hardcore, this has all the family resemblances of the BrewDog IPA family: lovely head and robust cloudy straw color, robust hop smell, deep, rich taste. But the single hop leave it a bit one-dimensional. A really great beer; just not as good as the last Punk I had.

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Photo of jlindros
3.67/5  rDev -2.4%
look: 3.5 | smell: 4 | taste: 3.5 | feel: 4 | overall: 3.5

Best by 8/10... I just bought this recently in the store too so either the store held it on the shelf, or distributor...

Pours a light fizzy head, rosy reddish orange maroon apricot color, very hazy.

Nose loaded with fruits, apricot, apple, raisin, fig, dried fruits, Belgian yeast, very light hop character.

Taste starts with a slight bitter apple seed, fruit, fig, raisin, apricot, bitter rind taste, bitter hop character as well, chewy hops, little yeast, Belgian yeast fruits, long bitter finish, light fruits, chewy spicy hops, light yeast.

Mouth is med bodied, decent carb.

Overall decent, interesting fruits, bitterness, some light hop flavors, probably better fresh.

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Photo of oberon
3.68/5  rDev -2.1%
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 75 ratings.