Double Nut Brown
Mammoth Brewing Company

Double Nut BrownDouble Nut Brown
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From:
Mammoth Brewing Company
 
California, United States
Style:
American Porter
Ranked #412
ABV:
5.5%
Score:
85
Ranked #28,068
Avg:
3.79 | pDev: 12.14%
Ratings:
270 | reviews: 76
Status:
Active
Rated:
Aug 02, 2025
Added:
Sep 03, 2004
Wants:
  5
Gots:
  51
Rich in flavor with aromas and flavors of coffee, chocolate, and a little toffee-nutty character (don’t worry, no nuts were harmed or used in the making of this beer!)
Recent ratings and reviews. | Log in to view more ratings + sorting options.
Ratings by Gatch:
Photo of Gatch
Reviewed by Gatch from Massachusetts

4.19/5  rDev +10.6%
look: 4.25 | smell: 4 | taste: 4.25 | feel: 4.25 | overall: 4.25
On draft at a sneaky spot in San Diego. Hybrid Brown/Porter with qualities from each. Rich roasty nutty flavor with a light, approachable body. Solid beer, a nice surprise.
Jun 15, 2025
More User Ratings:
 
Rated: 4.02 by kjkinsey from Texas

Aug 02, 2025
Photo of RaulMondesi
Reviewed by RaulMondesi from California

4/5  rDev +5.5%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4
The Beatles say that “happiness is a warm gun,” while Lou Reed is stoked on a walk in the park with “her.” Anyway, all Raul knows is that a perfect day for him is this beer and pizza with Baby Raulita (no other substances involved).
Jul 02, 2025
Photo of LeinenkugelDrinker
Reviewed by LeinenkugelDrinker from Nevada

4.25/5  rDev +12.1%
look: 4.5 | smell: 3.75 | taste: 4.5 | feel: 4.25 | overall: 4.25
Look: Very dark brown with a light tan head that is medium in height.
Smell: Good. Toffee and chocolate. On the lighter side.
Taste: Superb. Follows the nose with a toffee and chocolate sweetness that is succeeded by a long lasting bitter nut finish.
Feel: Low in the mouth and relatively smooth.
Overall: This is an excellent brew that I would highly recommend.
Dec 11, 2024
 
Rated: 3.54 by MJSFS from Florida

Nov 28, 2024
Photo of JerzDevl2000
Reviewed by JerzDevl2000 from New Jersey

3.88/5  rDev +2.4%
look: 4 | smell: 3.5 | taste: 4 | feel: 4 | overall: 4
This was another beer that I picked up out at Yellowstone last year and took while to reviewing. Had a few of their other offerings when I was out there and this was on par with those as it was an enjoyable Porter that could have been easily confused with a Nut Brown Ale!

Of course, this poured a nut brown as it was topped with a gorgeous, full tan head that evenly settled and left behind tons of sudsy lacing. Chestnuts, bing cherry, and a bit of roasted malt were in the nose as some coffee, lactose sweetness, and dark bread was in the taste Lots of nut here. although it was never overpowering as the body was nicely balanced since there wasn't much of any stickiness to be had.

A bit of peat moss and dark nuts stuck around in the aftertaste as it left a mild slickness behind on my teeth. It was nearly impossible to detect the alcohol as it would have been easy to crack open another can after finishing this off. Packaged on 2/8 of last year with "DOUBLE THE FUN" written above it, I really enjoyed this as it seemed to be a hybrid of two styles that was suitable for drinking year-round. Grab it on your next run out west!
Jun 05, 2024
 
Rated: 3.93 by Beergod420 from Michigan

Jan 31, 2023
Photo of Beecham
Rated by Beecham from California

4.48/5  rDev +18.2%
look: 4.5 | smell: 4.5 | taste: 4.5 | feel: 4.25 | overall: 4.5
Brown ale/Porter intersection
Jan 01, 2023
 
Rated: 4.06 by Axelrond from Nevada

Sep 13, 2022
 
Rated: 3.85 by Mustela_Man from California

Sep 29, 2021
Photo of kemoarps
Reviewed by kemoarps from Washington

3.79/5  rDev 0%
look: 4 | smell: 3.75 | taste: 3.75 | feel: 4 | overall: 3.75
Deep burnt caramel dark brown colour. Chestnut/mildly ruddy in the light. Small little fuzz of flan coloured head that settles into a little ring with some galactic swirls.

Nose is slightly nutty (could be some suggestion, but I think it's probably real), and some rye toast and a touch of a lactose impression, though I don't think there's any actual lactose involved. Some light grassy/fruity hopping as well.

Initial blush is more dry than the nose suggested, and has some of the same woody nuttiness. The second wave comes on and morphs just slightly as the nuttiness is less dry and has more of an unroasted chestnut kind of vibe. There's some essence of chocolate, but without the depth and richness of chocolate. The nut-meat aspect carries through to the finish where some light hopping kind of blending to give it a mild finish with some faint roast and almost a light red-berry-like character.

Kind of gives the impression of just a touch of lactose, but again I don't think that's actually in there. On the drier side overall, and a nice finish that almost borders on tart (more in the way that raspberries are tart, not like wild yeast tart). Enjoyable, and unique enough not to just kind of fall through the cracks. It's one that I feel like is better than the final score suggests, but nothing really warrants adjustment.
Jul 21, 2021
Photo of rodbeermunch
Reviewed by rodbeermunch from Nevada

3.33/5  rDev -12.1%
look: 3.75 | smell: 3.25 | taste: 3.25 | feel: 3.25 | overall: 3.5
Hey it says brown on the label, but its a porter on BA! Muh knowledge.

Pours a rich brown color, this ain't a Newcastle thin light brown, its sturdy and hey I'll give BA something, it does look porterish with its heft and lighter brown head 3/5" down. Does have that lightly nutty aroma, reminds me of that coffee with nuts in it.

Taste is better than your average brown ale, but I just don't see the heavy malt roasting indicative of a porter here, it has more of a deft hand, lighter roast, but more malt if you will. So I'm still saying brown ale. Hints of chocolate and caramel to it. But just not that bitterness and roast depth of a porter, much less an American one. The hopping is minimal unlike an American porter.

I think if you like brown ales, you should go for it. I wouldn't mind having a bottle or two on hand for those I party with who don't like sour or hoppy, but also think a super roasted sludge imperial stout is too intimidating.
Mar 25, 2020
 
Rated: 4 by jmbeerdude91 from Arizona

Feb 06, 2020
 
Rated: 3.79 by Mikexw from New York

Nov 06, 2019
Photo of pants678
Reviewed by pants678 from California

3.52/5  rDev -7.1%
look: 3.5 | smell: 4 | taste: 3.25 | feel: 3.5 | overall: 3.5
Dark brown with white foam.

Light roast coffee.

Blind I would've guessed a touch of lactose. Almost no bite, not much sticks out. Touch of cocoa powder, roasted malt. Beer without flaws but nothing particularly exciting.

Pretty smooth.
Aug 04, 2019
Photo of neenerzig
Reviewed by neenerzig from Ohio

4.25/5  rDev +12.1%
look: 4.25 | smell: 4.25 | taste: 4.25 | feel: 4.25 | overall: 4.25
Having this beer during happy hour at the hotel bar on my last evening on vacation in Indian Wells, CA before my dad and I return home to Cleveland tomorrow. Poured out of a 12 oz bottle into a pint glass, this beer pours a very sark, almost black color with a tan head that’s about 2/3 of an inch when first poured. Head settles to a medium sized ring lining the inside of the glass along with a pretty solid film layer of surface foam that’s accompanied by some nice lacing. Aromas of roasted malts and nuttiness that has some caramel sweetness along with hints of chocolate. Has a roasted malt and nut flavor that’s folowes by some notes of caramel and chocolate sweetness along with just a hint of black coffee bitterness. The flavor profile is rounded out with a hint of earthy hop bitterness. A very well balanced flavor profile. Has a fairly crisp, just slightly prickly, smooth, lifjtbto medium bodied mouthfeel with light to slightly moderate carbonation. One of the lighter body porters I’ve certainly ever had. And that works well here I feel. Has a clean finish and mildly smooth aftertaste. Glad I got the chance to try this. Recommended by me if you get the chance to have it.

Eric
Jun 25, 2019
 
Rated: 3.94 by jroof1 from Massachusetts

Nov 24, 2018
Photo of vikinggary28
Reviewed by vikinggary28 from California

3.63/5  rDev -4.2%
look: 4 | smell: 3.5 | taste: 3.75 | feel: 3.5 | overall: 3.5
Nice dark brown with a dark reddish hue and an off white head. Smells of rich malts. Taste has some burnt nut in the malts along with some slight chocolate and hints of nuts and fruits. Mouthfeel is not bad at all. Not a bad porter at all. Nice winter brew. Prost!
Nov 21, 2018
 
Rated: 4.04 by sunnovgoat from California

Nov 09, 2018
 
Rated: 3.5 by DerwinWentworth from Utah

Jul 31, 2018