Old Viscosity
Port Brewing

Old ViscosityOld Viscosity
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Stout - American Imperial
Ranked #1,067
Ranked #2,502
4.16 | pDev: 8.89%
Port Brewing
California, United States
Old ViscosityOld Viscosity
Notes: This is definitely not your Dad’s 30 weight!

An enormously rich and satisfying beer, Old Viscosity begins with a malty nose with caramel and chocolate overtones. An incredibly rich beer with substantial malty notes, Old Viscosity finishes with a dry, sweet Dark Chocolate bitterness.

HopsGerman Magnum

Original Gravity1.091

AvailabilityYear Round
Reviews: 900 | Ratings: 2,019 | Log in to view all ratings and sort
Photo of jzeilinger
jzeilinger from Pennsylvania

4.1/5  rDev -1.4%
look: 4 | smell: 4 | taste: 4.25 | feel: 4 | overall: 4

A - Pitch black pour with light caramel head floating on top and dense lacing.

S - Deep chocolate roast, char, and light smoke.

T - Chocolate roast and chocolate char from start to finish. Ends with a nice lingering chocolate roast bitterness.

M - Thick and velvety with a tad bit of thin around the edges, dry on the back of the tongue with a slight chalky residue coating the mouth.

O - An easy drinking Imperial Stout where the alcohol pokes through somewhat at the beginning but quickly subsides.

May 31, 2021
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mothman from Minnesota

3.75/5  rDev -9.9%
look: 3.75 | smell: 3.75 | taste: 3.75 | feel: 3.75 | overall: 3.75

Bottle. I think it’s a 2015, but the date is smudged.

Tan head. Lace. Black color.

Roasted malts, bitter dark chocolate, coffee, caramel. Not super thick, but it’s a big stout. Lots of oak. Lots of bitterness from the chocolate and hops.

Mar 27, 2021
Photo of Sigmund
Sigmund from Norway

4.32/5  rDev +3.8%
look: 4.25 | smell: 4 | taste: 4.5 | feel: 4.5 | overall: 4.25

1 pt. 6 fl. oz. bottle, courtesy of Cardinal Pub & Bar, Stavanger. ABV is 10.0%. Black colour (dark ruby when held to the light), huge tan head. Lovely aroma of moderately roasted malts, mild coffee, chocolate, oak and leather. Full and rich flavour, malty predominance with much the same elements as the aroma, moderate but sufficient hops in the finish. Well balanced, immensely pleasant to drink. Warming mouthfeel, but the alcohol is otherwise well hidden in the flavour.

Mar 20, 2021
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StonedTrippin from Colorado

4.44/5  rDev +6.7%
look: 4.5 | smell: 4.25 | taste: 4.5 | feel: 4.5 | overall: 4.5

this is one of the beers that started my cellar, maybe not the very first bottle, but near it, and not because i adored it and wanted to see how it aged, indeed i had never even had it before, but because i was loving port at the time and never had the occasion to break it out over the years, that or i forgot, and its been collecting dust ever since. ive been doing one random cellar dark beer every thursday during quarantine for my own entertainment, and i feel thankful to have pulled this one yesterday. i cant find a date on the bottle, but this has to be approaching ten years old, its no newer than maybe seven years, i do not totally recall its origin story, lots has happened since then, but suffice it to say it should be called ancient viscosity! i dont always love how stouts age, they often taste oxidized and thin to me, especially ones that spent time in oak, sometimes its just better to drink them close to fresh, but i was rewarded for my patience with this one, that is certain, and the quality and refinement overall here is additional testament to how amazing port is with quality and attention to detail, its immaculate. close to jet black with a surprisingly high head, mocha colored and frothy, with great retention and even some lace, unexpected in a beer this old, and some obvious bottle conditioning has taken place, this is velvet to drink. i get notes of dark chocolate, black licorice, and unlit cigar in the nose and taste here, with subtle bready yeast character, earthy spice, wet hearty oak, and rich molasses. just a bit of oxidation to the nose, but absent from the flavor, shocking for how old this is. there is a nice decadence to this with it being quite dry for the style, but i do get an almost belgian dark candy sugar taste in here, all very well grounded and balanced, nice roast, smooth as anything, and really seemingly pretty bulletproof in the cellar, like even after about a decade, its still nowhere near the end of its delicious trajectory, i almost cant believe it. i love older viscosity too, but this is darn near just as good, especially with all this age on it, a stunning specimen!

May 29, 2020
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Oh_Dark_Star from Washington

4.25/5  rDev +2.2%
look: 4.25 | smell: 4.25 | taste: 4.25 | feel: 4.25 | overall: 4.25

Bitter and creamy. Chocolate and coffee. Roasty and a touch of vanilla. These are some of the qualities that make good stouts, and these are all qualities for this one. Very good, what a stout should be, but not quite at the level of Fremont Dark Star to hold my interest over the long haul.

Jul 26, 2019
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beergoot from Colorado

4.18/5  rDev +0.5%
look: 4 | smell: 4 | taste: 4.25 | feel: 4.25 | overall: 4.25

Black and opaque body; thick, dense, and creamy light tan head. Huge roasted and charred grain aroma; suggestions of dark chocolate. Big cocoa and roasted grain flavor; chocolate sweetness offset with medium-strength hop bitterness. Heavy body; thick and velvety; some grain husk astringency; fine blend of chocolate sweetness and dark grain and alcohol dryness.

This beer exudes stout goodness at all levels. It is very rich and satisfying with a robust character and complex and well-balanced depth. Awesome...coats the palate with thick and satisfying goodness throughout the tasting experience.

Jun 27, 2019
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dbl_delta from Pennsylvania

4.04/5  rDev -2.9%
look: 4.25 | smell: 4 | taste: 4 | feel: 4.25 | overall: 4

Can into pint glass. Pours a very dark brown with a coarse light tan head. Initial impression is thick milk chocolate, coffee, roasted malts, vanilla, and oak. Mouthfeel is thick and creamy-smooth; carbonation is just enough to showcase the flavors. Alcohol is well hidden. Finish is more coffee, dark chocolate, oak and a slight lingering bitterness. This would not be something that you would open more than one of, but the one you open will prove thoroughly enjoyable.

Jun 18, 2019
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AZBeerDude72 from Arizona

4.45/5  rDev +7%
look: 4.25 | smell: 4.25 | taste: 4.75 | feel: 4.25 | overall: 4.25

A: Black with nice tan foamy head and abundant lacing that remain thru entire beer.
N: Lots of coffee, dark chocolate, malt, barley and minor vanilla.
T: Follows the nose, thick creamy coffee goodness with dark chocolate bitterness, some light malt and vanilla.
M: Thick, creamy and easy to drink.
O: Loved it, very drinkable, loads of flavor, and very well balanced.

May 17, 2019
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RacerX5k from Pennsylvania

3.47/5  rDev -16.6%
look: 3.75 | smell: 3.5 | taste: 3.5 | feel: 3 | overall: 3.5

Of course, for old times sake I had to try the newly released 19.2 can. But back in the day this was questionable quality at $6 per bomber. Not much has changed except it's more expensive now.

Looks ok. Smells and taste big chocolate, roasted, hoppy, full flavored beer I question the categorization now of Imperial Stout as this used to be Strong Ale, wasn't it? My issue with this beer and it has always been that it becomes increasingly annoying as you go. Would be much better marketed in 12 oz 4 paks at a reasonable price.

Bottom line, one and done. Port Brewing needs to step up their game, and this used to be one of my favorite breweries.

Apr 18, 2019
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BarrelchesterHamfist from New Jersey

4.27/5  rDev +2.6%
look: 4.75 | smell: 4 | taste: 4.25 | feel: 4.25 | overall: 4.5

Beautifully carbonated blend of fresh and barrel aged black ale that nicely coats the glass.
The subtly sweet vanilla almond scent of the barrel melds with the initial taste of dried figs to balance out a drying finish of oak, cacao, and bitter hops.
Ive had it fresh and a couple years old, excellent staying power... the beer jumps off the line a bright barleywine-ish dark ale and matures into a smooth Imperial Stout with some time - Win/win.
CAUTION to those that disparage cellaring, welcome to your gateway beer.

Jun 20, 2018
Photo of toddplatek
toddplatek from New Jersey

4.53/5  rDev +8.9%
look: 4.75 | smell: 4.25 | taste: 4.75 | feel: 4.25 | overall: 4.5

Call me Stupid for not having bought a few cases of Old Viscosity. Port Brewing does just about all their ales right, but Ol' Vis was incredible. Bring it back, boys/girls!!

Feb 25, 2018
Photo of hoptheology
hoptheology from South Dakota

3.86/5  rDev -7.2%
look: 4.5 | smell: 4 | taste: 3.5 | feel: 4.25 | overall: 4

Bottled 12/7/14. Paid $6.99 at Island Grocery. Label says they won't claim what kind of beer it is, and label it as a dark ale.

Dark chocolate-coffee bean pour with a sudsy tan to red head. Head retention is good.

Aromas of caramel, dark fruit, molasses, licorice, and some oak barrel.

Flavor is much more bitter than expected, very hoppy, but yields a nice espresso roast character with some molasses, horehound, alcohol heat, oatmeal, tin, and barrel. I think the hoppiness and the tin gets in the way of the other flavors which could have imparted a much sweeter, more molasses-focused old ale style.

Feel is creamy and smooth, with a proper carbonation level, heavy bodied, and has a hot finish.

Overall, the beer has held up well over the last 3 years, but the taste profile leaves a bit to be desired. My first Port beer, but probably not my last. From what I hear these guys can really brew some outstanding brewskis.

Jan 10, 2018
Photo of Tony210
Tony210 from New Jersey

3.91/5  rDev -6%
look: 4 | smell: 3.5 | taste: 4 | feel: 4.25 | overall: 4

** Purchased in 2015 **
Pours very, very dark, quite thick with a foamy head that hangs around a while. Lots of burnt malts on the nose, bittersweet chocolate, some espresso. Thick, creamy, chewy, lots of bittersweet chocolate at first, burnt sugar, big roasted malts, bitter espresso finish. Perfect carbonation makes the beer feel bigger and fuller - excellent! Overall this is a nice imperial stout, the barrel doesn't come through until you swallow it and feel the tannins in the back of your tongue. Glad I tried it!

Bomber, no date, purchased in 2015
4 rating

Jan 06, 2018
Photo of monkist
monkist from Hungary

5/5  rDev +20.2%
look: 5 | smell: 5 | taste: 5 | feel: 5 | overall: 5

This is simply crazy. An awesome imperial stout? porter? strong ale?
Amazingly heavy, amazingly intense in flavor, with a complex, full body. Most admit that I don't really like porters nor stouts but this one is something special. Something coffe-y, something roasted, aged in oak barrels... wow. This is good ole' viscosity, like the picture shows, old engine oil drained into a glass... "not your dad's 30 weight!"
This is a real heavyweight champion!

Jun 24, 2017
Photo of Ozzylizard
Ozzylizard from Pennsylvania

4.19/5  rDev +0.7%
look: 4.25 | smell: 4 | taste: 4.25 | feel: 4.25 | overall: 4.25

$ 13.57 (Including shipping)/bomber ($ 0.617/oz) from Blackwell’s, San Francisco, CA.
Undated bomber at 42 degrees. Served at 57 to 61 degrees in a hand washed and dried Jester King snifter.
Aroma – caramel and a hint of chocolate. Fades to nothing.
Head – Enormous! Maximum of eight cm, aggressive pour. Light brown, high density foam, creamy with a few rocks, average retention. Diminishing to a wide irregular creamy ring varying from five to fifteen mm and a heaped creamy partial layer with rocks.
Lacing – good. Thick wide partial rings of mostly tiny to small bubbles.
Body – dark brown to black, opaque.
Flavor – begins with a slight malt bitterness and a caramel and chocolate taste with definite overtones of alcohol as it warms in my mouth. Gastric burn quickly follows. Neither hops nor diacetyl are tasted. Oak barrels, you say? I’m not detecting any vanillin or tannin either.
Palate – full, creamy, lively carbonation.

A good imperial stout, just not detection any barreliness. At $ 7/bomber (Prior to shipping costs), this is a bargain.

Appearance 4.25, Aroma 4, Flavor 4.25, Palate 4.25, Overall 4.25.

Mar 25, 2017
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buschbeer from Ohio

4.25/5  rDev +2.2%
look: 4.25 | smell: 4.25 | taste: 4.25 | feel: 4.25 | overall: 4.25

1 PINT 6 FL. OZ. bottle
Served in a snifter

This beer pours black and is topped with an inch of mocha head.

I get aromas of chocolate and roasted malt.

The taste has chocolate and coffee with some oak. The finish is somewhat dry and woody.

Full mouthfeel and medium carbonation

This is a very nice stout. I like the dimension that the oak adds to it. I can definitely tell it has been in an oak barrel. I was a little worried that I hung on to the bottle too long. I think it aged well and would not hesitate to buy another bottle.

Feb 08, 2017
Photo of Reema
Reema from California

4.47/5  rDev +7.5%
look: 5 | smell: 4.25 | taste: 4.5 | feel: 5 | overall: 4.25

Serving type: 22 oz bomber into a snifter

Pours a deep crimson brown, essentially black. Smell is of heavy roasted malt, espresso, slight vanilla, and darker chocolate. Taste reflects the smell perfectly. Initial dark chocolate and heavy coffee like roastiness lead into a slight vanilla taste with a lingering roasty bitterness. Feel is thick and the end of the drink is slightly grainy feeling, very pleasant. Overall this is a fantastic stout that is is easily found.

Jul 20, 2016
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Sludgeman from District of Columbia

4.89/5  rDev +17.5%
look: 4.75 | smell: 5 | taste: 4.75 | feel: 5 | overall: 5

On tap at the Sovereign in Washington, DC. Poured into a large chalice. I received the last pour from the keg, so only half a glass but free.

Almost a chocolate milkshake but not. Now one of my favorite beers. 5

A - Pours black with a frothy tan head. 4.75

S - Aromas of dark chocolate and bread so yummy that it's almost like I am sampling a cookie. 5

T - Roasty but not burnt, some bitterness in the finish, dark chocolate, small vinous quality and a little bit of oxidation like an old ale. 4.75

MF - Great mouth fell smooth but with a frothy lightness that gives only a med heavy body. A bit of viscosity! Semi dry finish. 5

Jul 06, 2016
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ilikebeer03 from Texas

3.51/5  rDev -15.6%
look: 4 | smell: 3.5 | taste: 3.5 | feel: 3.25 | overall: 3.5

Pours jet black with a nice thick tan head. Good retention and lacing. Nose is a bit of toasted oak and malt. Palate is toasted malts, and a bit of oak. Not very much going on. Mouthfeel is a bit thin and over carbonated in my opinion.

Jun 09, 2016
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Wiffler27 from North Carolina

4.28/5  rDev +2.9%
look: 4.75 | smell: 4.25 | taste: 4.25 | feel: 4.25 | overall: 4.25

pours jet black with a thick head. looks a bomb ass stout.

smells like coffee and chocolate. has a nice mellow booze to it.

taste hits sweet then boozy/sweet. good oak aged beer. smooth flavor to this as well. finishes with a slight booze burn.

overall this is pretty good, has smoothness and slight alcohol burn to it.

honestly thought this was an old ale aged in oak. not that i'm complaining i just thought this was a different kind of beer.

Jun 08, 2016
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DaveBar from Canada (ON)

4.04/5  rDev -2.9%
look: 4 | smell: 4.25 | taste: 4 | feel: 3.75 | overall: 4

Got on trade! 650ml bottle served at 8deg C in a tulip

A- Opens well and pours a 1" head that lasts for a few minutes before film out. Very dark brown colour

S- Nice malt and sugar. Good chocolate and some heat.

T- Chocolate and malt. Some bittering hops but not much. Burnt at the end. Ok but just not that roasted malt this way fan of 2 row.

M- Dry and tart. Not that creamy going down.

O- Not a bad brew. Pretty average but believe would be a good base on a bourbon barrel aged stout.

Food Pairing

This not too bad brew went well with..... Marxhmellows and chocolate with hot crispy wafers of the graham type!!


May 21, 2016
Photo of Tommo
Tommo from Texas

3.89/5  rDev -6.5%
look: 4 | smell: 3.75 | taste: 4 | feel: 4 | overall: 3.75

based on older viscosity, i thought id like this. Was mediocre at best. I felt the beer was overly bitter, not carrying enough body, and too hoppy. mildly acrid if that is fair

May 11, 2016
Photo of mjpolzin
mjpolzin from Wisconsin

3.8/5  rDev -8.7%
look: 3.75 | smell: 3.75 | taste: 3.75 | feel: 3.75 | overall: 4

A good, complex tasting imperial stout but lacked the barrel aged character that I was hoping for with something that is in fact barrel aged. One positive I will say is that with a decent amount of roastiness, I think this one could age very well.

May 05, 2016
Photo of rodbeermunch
rodbeermunch from Nevada

4.19/5  rDev +0.7%
look: 4.5 | smell: 4.25 | taste: 4 | feel: 4.5 | overall: 4.25

Looks excellent, truly like used motor oil just as much as any other beer, full on inch of head on the top, tan. Aroma was lots of chocolate malt, roastiness, vanilla, coffee malt smells in that order.

Hides the alcohol, chocolate malt just chews and chews the hell out of it, makes this so smooth and drinkable. Some earthy tobacco and thick consistency make this a great cigar beer as well.

One of the best non barrel aged imperial stouts out there.

Apr 02, 2016
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unclekeith from Alaska

4.38/5  rDev +5.3%
look: 4.5 | smell: 4.5 | taste: 4.25 | feel: 4.75 | overall: 4.25

2011 in a goblet

L: Jet black with a small tan head disipatting quickly to a collar
S: Dark fruit, roasted malt, alcohol,
T: Roasted malt, coffee, nice bitterness, dry
F: Full bodied, great carb,
O: A great stout, very drinkable considering the viscosity

Mar 10, 2016
Old Viscosity from Port Brewing
Beer rating: 93 out of 100 with 2019 ratings