The Sixth Glass Quadrupel Ale | Boulevard Brewing Co.

819 Reviews
The Sixth Glass Quadrupel AleThe Sixth Glass Quadrupel Ale

Brewed by:
Boulevard Brewing Co.
Missouri, United States

Style: Quadrupel (Quad)

Alcohol by volume (ABV): 10.50%

Availability: Year-round

Notes / Commercial Description:
”Do you know what dwells in a glass?” asks Ole, in Hans Christian Andersen's The Watchman of the Tower. Better known for stories such as The Little Mermaid, Andersen wrote this short, cautionary tale for a somewhat older audience. Our quadrupel ale, also meant for the mature connoisseur, is a deep and mysterious libation, dark auburn and full-bodied, its sweetness deceptive. As Ole describes the glasses in turn, their contents become more ominous until, in the sixth glass...

22 IBU

Added by Bitterbill on 11-15-2007

For Trade:
User Reviews
Sort by:  Recent | High | Low | Top Raters | Alström Bros
Reviews: 819 | Ratings: 2,863
Photo of Brackh
4/5  rDev -2.2%

Pours a nice hazy brown with little to no head. Smell and taste of strong alcohol but this brew is smooth. Dark fruits stick out with this one. Maybe some figs and raisins. Taste grows on you for sure as this one warms up a bit. Surprised this is from Missouri.

 261 characters

Photo of Tsar_Riga
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

A - Opaque body of reddish brown, light tan-orange head is fluffy and extensive. Some lacing. Also, volcanic on opening. Lost a couple ounces.

S - Fruit. Caramel. Apple skin. Spun sugar.

T - Follows the nose, with sweet banana and mild brisk acidity, doughy flavors, and slight bitter bite to clear in the close.

M - Moderate carbonation, and a bit of prickle in the close.

O - Quads are not my favorite style, being a bit more than I want most days. This is a mighty fine version, with lovely caramel dough notes.

 525 characters

Photo of wordemupg
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

750ml corked and caged bottle poured into tulip 29/10/15

A clear reddish amber when held to the light, large loose tan foam has decent retention slowly falling to a thin film but only leaves a few patches of lace

S lots of brewers candy, brown sugar, faint plum, lots of spice and a little boozy, faint clove and anise as it warms

T mimics the smell fairly well, a little sugar coated fig, its fairly young and a little rough around the edges but no major complaints

M has some body but the bubbles fluff it up and make it a bit airy, a little heat and fine grit on the palate, spicy finish lingers

O solid quad start to finish and I could see this improving a fair bit with some cellar time

Well rounded and easy enough to drink for a quad, a little pricey at nearly 20$ a bottle in these parts, I could flip a coin deciding to but one to age

 856 characters

Photo of slaintemhor
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

I haven't tried much from this brewer as we don't get their products in my state, but luckily their products are showing up in a neighboring state (about six miles away). The color of this was a dense, dark amber with tinge of garnet (when held against the light). The nose was redolent of sweet, spicy malt. On the palate, a quick burst of tiny bubbles followed by brown sugar, caramel and turbinado, then a slight bitterness on the palate and a long finish.

 459 characters

Photo of CaptainTripps
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

750ml bottle poured into a Duvel Tulip

A: The beer poured a cloudy amber/redish orange color that came with about 2-3 fingers worth of off white cream colored head. Moderate amounts of lacing left on the glass.

S: Alcohol soaked dark fruits paired with belgian yeast and malty breadiness. Semi funky, semi sweet. Candied sugar and caramel. Pretty complex.

T: Semi-sweet caramel mixed with plums, currents and raisons. Alcohol combined with yeast, breadiness. Has a spice character to the beer that isn't over the top; very subtle.

M: Medium bodied beer with warming alcohol. Medium carbonation. Fairly smooth.

O: Not a bad American interpretation of the style. One of the better ones in America. Would love to see what some age can do with this.

 753 characters

Photo of afinepilsner
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

12oz brown bottle
10.5% abv

The Sixth Glass was a hazy dark amber color with fine particles floating throughout. It had a large beige head with good retention and minimal lacing. The smell was malt, yeast aromas, and spices with some alcohol. The taste was quite fruity with clove-like spices and some alcohol. The finish was long, dry, and throatwarming. This beer was medium-full in body with medium carbonation. Drinkabity was good.

 436 characters

Photo of biegaman
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

750ml bottle, corked and caged, thanks to Grub! Its name a reference to Hans Christian Andersen's 'The Watchman of the Tower' - a recommended tale for those who enjoy the drink.

An anemic terracotta shade and khaki head make for a brilliant colour scheme. These tones of clay ceramic and tapioca white, neither all that attractive on their own, pair together perfectly; they must have been made for each other. I'm quite curious to take a taste.

Boulevard phenomenally captured the Belgian styles of saison and tripel in this same 'Smokestack Series' release, and judging by the looks of things, they've done so as well with the quad. Although its colour may be a tad light, the head is right on for style: mildly creamy, responsive, everlasting, and giver of lacing.

The aroma contains a soft spiciness with gentle notes of ginger and caramelizing brown sugar. All notions of spice are most likely derived from the yeast and it would seem they've chosen an appropriate (and good) one. The smell indicates this is a beer you'll have to enjoy by taking your time with it.

The body is very malty with plenty of sticky sweet taste and a strong hit of something spicy and slightly boozy. It is lacking a little in the dark fruits (plums, raisins, dates) found in other quads. It still manages to taste pretty good and full of flavour to spite this.

Something in the taste imparted a slight port/sherry like character and tannic grape flavour. Perhaps it is the sweet sugar or perhaps the excessive heat; the alcohol is well stitched in to the makeup but nevertheless, at least fresh, this tipple is a warm and spicy one.

Although this seemed at times a strong dubbel, I'm again impressed that Boulevard has so successfully understood and conceived their Belgian ales true to style. This came on a little spicy and a little strong, making it a good candidate for aging, and definitely a beer that would pair wonderfully with a number of traditional Belgian dishes (Flemish stew, perhaps?)

 1,994 characters

Photo of BeerSamurai34
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Really nice solid quad. This is not my fave style so take my notes with a grain of salt. I liked this one and it matches the profile for the style very well. Lots of dark fruits and good mouthfeel.

 197 characters

Photo of Gueuzedude
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Batch Number: 68100; Sampled September 2008
A soft pour produces an initial four-finger thick head that fills my 25cl tulip glass and then proceeds to mushroom up two fingers past the rim of my glass and slightly overflow, but only just barely. The head is a light tan color with a densely packed head. The beer is an amber color that is on the light side from your average Quad and shows a brilliantly clear, cranberry-orange stained, dark copper color when held up to the light. Spicy aromas of woody pepper and mature ginger are almost immediately joined by tart notes of tamarind, sour plum and a lactic like note. I expected a lot more concentrated, rich malt notes here, but instead this seems to have been replaced by this light, but substantial tartness.

Lightly sweet flavors are offset towards the finish by an herbal sage like note that is light but fairly distinct. The sweetness tastes of and accentuates flavors of plums, a filtered tamarind note and a light raisin note. The beer finishes with a warming alcohol note that at times can be overly hot with higher alcohols; these notes accentuate a spicy finish that has a peppery bite as well as a hint of plastic-like phenolics and a light tongue numbing clove note. Not nearly as tart as the aroma suggested, which is as I suspected for some reason, but it still does have a touch of tartness that is likely just contributed by the yeast strain used. This is actually quite dry for a Quad (this also likely accentuates the perceived tartness), with a medium body that is on the light side for a Quad.

A second pour easily produces just as much of a voluminous head. As the beer has warmed the aroma has picked up a finish that has a lot more toasted malt aromatics to it; biscuit like with a nice crushed grain character. This is a pretty good beer, the only real flaw is that it can get awfully hot in the finish, but this is only at times so doesn't kill the beer.

Purchased: South Bay Drugs, Imperial Beach CA

 1,980 characters

Photo of mothman
4/5  rDev -2.2%
look: 4.5 | smell: 4.5 | taste: 4 | feel: 3.5 | overall: 3.5

Batch 68319

Poured into Corsendonk Goblet.

Massive 2 finger head. Creamy beige in color. Good retention. Leaves some splattered lace. Color is a dark hazy bark brown with hints of light chocolate. Good looking beer.

Aroma: Deep grape and plume aroma. A lot of dried fruits. Biscuits, fresh earthy hops, plums, alcohol, raisins. Wine-like aroma mixed with a lot of malts. Very complex.

Taste: Tons of malts mixed with alcohol and dried fruits. Plums, raisins, grapes. A big flavor. A lot of earthy hops are there to balance this beer.

Mouthfeel: Boozy, sweet, and creamy. Wow, this is like taking a shot. Full bodied, a fairly high amount of carbonation. Leaves a big boozy/dark fruit flavored aftertaste. One of the only parts of this beer that I didn't prefer.

Overall, I really liked this beer. A ton of of flavor, a tad boozy, but that was expected. Splitting the 750 is a great idea. Good beer from Blvd, but make sure you aren't drinking it alone.

 958 characters

Photo of gmfessen
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Poured from a Champagne style bottle into a snifter, beer has a huge fizzy head with a murky reddish-brown body. The nose is sweet with sugar, Belgian candy and brown, along with a hint of molasses. Light to moderate phenols that just cover the alcohol. The taste is also rather sweet, more so than I would have thought but it is to style. All malt, bitterness only to balance slightly and a definite alcohol finish and linger. Mouthfeel is very full but due to the carbonation it seems lighter and bubbly, this could almost do the job of champagne. As drinkable as any beer this big can be, one that probably should be sipped and drinking 6 smaller glasses as opposed to chugging the bottle would probably be a good idea.

 722 characters

Photo of mentor
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Full yellow-tan head over a cloudy dark red-brown liquid. Smells toffee, brown malt, chocolate. Earthy, dark fruit is mild. Clean ethanol sting.

Tastes peppery, chocolate, clean alcohol sting, mild toffee. Cherry and streched thin raisiny. Mild belgiany phenolic character persists as an undertone. Strong carbonation with noticable alcohol to wipe most of the sweet of the palate. Leaves a dry residual chocolate in the aftertaste. Good drinkability now, I'll bet this one ages to become fantastic.

 500 characters

Photo of Getalegup
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Typical of a decent quad, it was malty with a nice sweetness. It had a good mouthfeel, too. Pouring was a bit challenging because of the large foam head. But it faded into medium lacing stuck to the glass. Pair with Franklin BBQ Brisket. Excellent combination.

 260 characters

Photo of jera1350
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Batch #68235. Had this one in the cellar for a little over a year now, but not sure on the exact date.

Dark amber brown color with a glistening creamy ring of copper foam around the glass. Nice retention and curtains of lacing.

The smell is moderately sweet, but is led by a rum barrel scent. A bit boozy and oaky, with dark rum characteristics.

Boozy with a medium sweetness and a deep complexity of flavor. Can't believe this is still pretty darn hot after sitting for over a year. Getting some dark rum and brandy flavors up front with a lingering heat. A dry oak presence with rum raisin and burnt brown sugar with a hint of vanilla bean. Pretty deep and intense.

A bit sticky up front, but finishes quite dry. Full bodied with about the right amount of carbonation.

This is a nice american made example of a quad. I prefer a La Trappe Quad which has more sweetness, but this is one hell of a complex brew. Drinking it, I could swear this is barrel aged, but I guess not. Boulevard really cranks out some quality beers and this one is no exception. Not to mention, the price point is solid as well.

 1,108 characters

Photo of tmoneyba
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

Poured a hazy reddish orange color with an average frothy brown head that mostly diminished with fair lacing. Moderate to heavy tart fruit and small alcohol aroma. Medium body with a smooth sticky texture and lively carbonation. Medium to heavy dark fruit sweet flavor with a medium to heavy sweet finish of moderate to long duration. Solid complex brew.

 354 characters

Photo of DRBiser
4/5  rDev -2.2%
look: 4 | smell: 4 | taste: 4 | feel: 4 | overall: 4

10/1/2012 Had this few times now, but first time rating.

A touch lighter hue than I like in quads, but a pretty and rich amber nonetheless. Decent foamy head that lasts.

Nose is fig and candied brown sugar. Touch of spice, touch of booze

Taste is a refined hit of spice and dark fruit with an ample dose of sweetness. Creamy mouthfeel with just a bit of the bready malt that I love. Perhaps the sweetness is a bit forced for this style (although I still enjoy it). It doesn't feel as full, complex, big, or "bready" as other quads. But I LOVE this style at the moment so I'm being hyper critical.

I'd buy this again - it's very nicely done being such an affordable quad brewed in the US

 694 characters

Photo of ElCommodoro
4/5  rDev -2.2%
look: 5 | smell: 5 | taste: 3.5 | feel: 4 | overall: 3.5

Poured a very light colour for a quad. This is only my second or third quad, but I know the colour is supposed to be darker. It's sort of a yellowish red. The head was enormous for such a high-alcohol beer. I'm not sure how it was possible. I had trouble pouring it gently enough to get a decent amount of liquid in my glass without it foaming over. I'm fast becoming a fan of quads. Perfect for someone who likes the high alcohol and intense flavour of trippels, but dislikes coriander. This one is pretty good, but it is not as good as the last one I had, The Reverend. Sorry to get so personal in my reviews, but I like to give as useful a review as possible by giving my background in the style. This one is just a bit too bitter and dry for a quad. It tastes like it's been dry-hopped. From what I've read, I don't feel like this is the idea of a quad. The last quad I had was much better balanced. This one is quite good as well, but not at the same level. A really good quad doesn't need as much spicing as this one has, in my opinion, but then again my opinion is truly a humble one. I'm a total noob to the style. So, take that with a grain of salt.

 1,158 characters

Photo of Metalmonk
3.99/5  rDev -2.4%
look: 5 | smell: 3.5 | taste: 4 | feel: 4.5 | overall: 4

Had this sitting around for quite a few months. It's time...
So, it's my first glass of Sixth Glass, and it just looks like a hella-serious beer. A super-foamy top, like styrofoam, maxes out at about two fingers thick, it's a toasted beige and the liquid itself is a freaking gorgeous mahogany. Big walls of lace webs make this a beer to behold.

Like some other quads, there's a raisiny/vinous quality that has a little trouble peeking through a medicinal alcohol wave. Grain alcohol dominates, but fresh-cut wood and other dark fruits try and even things out. The alcohol wins, just barely, so it could've been better, but certainly has some allure as is.

Lots of caramel and toffee have no trouble breaking through the still-pesky alcohol in the flavor, and luckily some other elements muscle through: burnt oak chips (interesting to get wood again, as this isn't barrel-aged as far as I know), raisins, burnt plums/figs, faint graham cracker, weak peppery spice, with a ghost of chocolate-covered liqueur-filled fruit in the finish. With all that, the alcohol remains present although not cloying, lingering along with toffee and ghostly pepper-infused chocolate in the finish.

Feels wonderfully velvety, a bit on the soft side without seeming thin or unexceptional. In fact, its silky slide across the tongue and down the throat, accented by a nice sherry-like alcohol tingle as it goes down, is a feature of this beer.

I love the story on the back label, regarding the name, and I made sure to heed its lesson. This is a strong beer, and it tastes strong, so it's one to sit with for a couple hours if drinking it alone...and this long, lazy Sunday afternoon seems just right for such a thing...

 1,706 characters

Photo of CFHMagnet
3.99/5  rDev -2.4%
look: 4 | smell: 4.25 | taste: 3.75 | feel: 4.25 | overall: 4

I have to thank SplashyFob for this one. He brought it over to share. Notes taken last night, 1/7/14.

I was presented a snifter with a light tan head over a dark amber/light brown body. The beer had a decent showing in the lacing category.

It smelled delightful. It was malty with dark fruit, mainly fig and plum, with just a hint of dark cherries. Light caramel helped transfer it over, with I believe a whisper of candy sugar if I'm not mistaken. Ending was very boozy.

The flavor was sweet and malty. Somehow it just didn't seem to live up to the promise of the nose. I got fig, candy sugar and booze on the end.

The mouthfeel was medium bodied. The carbonation was the key to how enjoyable this was. It was just a hint. The beer left a light film across the tongue and finished slightly dry.

 800 characters

Photo of Maxwell
3.99/5  rDev -2.4%
look: 4 | smell: 3.75 | taste: 4 | feel: 4.5 | overall: 4

The beer pours a dark maple syrup and candy brown with a creamy yellow head that sits at a half finger’s width with lots of small tightly packed bubbles. Carbonation bubbles can be clearly seen racing to replenish the head, but the beer’s body is murky and hazed, letting very little light pass through, even though the beer is clearly not black. Lacing is sparse, thin, and patchy on the sides of the glass. On the nose, the beer smells like spicy cinnamon raisin bread with a touch of cloying alcohol. Dark fruit malts give a firm body to the smell, highly suggesting raisins, but also verging on dates and perhaps a touch of plums, though the malt also suggest rich dark caramel. On the tongue, the beer tastes richly raisin-like with good sweet plum notes and alcohol spice backing, and a touch of bready yeast at the close. The beer begins with light spicy alcohol before opening into sweet raisin and then slowly moving towards sweet plum. The close brings the yeast to the forefront, suggesting breadier Belgian yeast characteristics in-between the sweet dark fruit notes. The malt is mostly dark fruit but does suggest the lightest bit of caramel and brown sugar. From the beginning, spicy alcohol bubbles under the tongue and the flavor, placing the sweetness of the beer just below cloying. On the mouth the beer feels thick and creamy with a touch of sticky heaviness on the tongue. The carbonation is light and fluffy and the mouth is left slightly dry and slightly cloyed with sweet sugar and a tingle of alcohol. Overall, the beer is a success within the style, and a lovely beer overall. The beer has great rich and complex flavors masking the heavy alcohol nicely, while still letting you know that this beer is for sipping. A success from Boulevard!

 1,770 characters

Photo of HenryPorter7777
3.99/5  rDev -2.4%
look: 4.25 | smell: 4 | taste: 4 | feel: 3.75 | overall: 4

American take on the Belgian style Quad. Pours copper-like with a 1" foam that laces through finish. This is my first Quad, so ..... This was a pleasant beer with an understated if not balanced effort: malts and yeast balance low to medium hops, carbonation, and bitterness. Alcohol is finely balanced to make this an easy-drinking and enjoyable beer. I think late Fall and Winter, but you could drink year round.
Well done. ABV 10.5%

 435 characters

Photo of TripleSun
3.99/5  rDev -2.4%
look: 4 | smell: 3.75 | taste: 4.25 | feel: 3.5 | overall: 4

My first pour after being chilled in the fridge ended up a carbonation disaster but my second bottle was nothing of the sort.

Darkish red/brown color going on with a substantial head. Smells of malt and cherries and tastes of grapes, malt and drinks heavy, yet leaves just the right amount of sweetness on the tongue. Not usually a Quad guy, but this one hits it out of the ballpark. Boulevard has struck home with me many times.

Reminds me of the winey Trappist beers that got me in craft beer.

 499 characters

Photo of Avagadro
3.99/5  rDev -2.4%
look: 4.5 | smell: 3 | taste: 4.5 | feel: 4 | overall: 4

A: tawny in color with a frothy cream colored head and plenty of lacing.

S: aroma is somewhat muted, with notes of raisins, cinnamon, and nutmeg.

T: semi-sweet, with notes of bread, dried fruit, and wintertime spices. Quite enjoyable.

M: full body, with heavy carbonation and a slight oiliness.

D: a great quad with plenty of complexity. Thanks Zach!

 354 characters

Photo of BierJager89
3.99/5  rDev -2.4%
look: 4 | smell: 4.25 | taste: 4 | feel: 3.25 | overall: 4

A: A dark, but almost glowy amer with a light tan head.

S: Belgian candi syrup, cloves, nutmeg and dark fruit in the nose.

T: Cloves, nutmeg, candi syrup, dark fruits, citrus fruits.

M: Medium bodied and a bit harsh, probably more alcohol than carbonation.

O: Not the best quad out there, but definitely worth a try. I'd like to try an aged bottle or the bourbon barrel aged version.

 387 characters

Photo of lawlerj
3.98/5  rDev -2.7%
look: 4.5 | smell: 4 | taste: 4 | feel: 3.5 | overall: 4

Poured from 12 oz bottle into a Duvel tulip glass.

A. Pours a dark mahogany with a massive light tan head. Takes a really long time to dissipate.

S. Rich bready malt and some fruity yeast notes mixed in there.

T. Big flavors. Initially I had a little trouble ferreting all off the flavors out. There is definitely malt in there, some dark fruit, raisins, etc. At over 10%, the alcohol is definitely present.

M. Full bodied, and the alcohol makes it a little "prickly" on the back end. Still very nice.

O. Overall, very nice. Not quite as good as some of the Belgians out there, but delicious nonetheless.

 612 characters

The Sixth Glass Quadrupel Ale from Boulevard Brewing Co.
4.09 out of 5 based on 2,863 ratings.
  • About Us

    Your go-to website for beer (since 1996), publishers of BeerAdvocate magazine (since 2006) and hosts of world-class beer events (since 2003). Respect Beer.
  • BeerAdvocate Microbrew Invitational

    Join us June 2-3, 2017 in Boston, Mass. for beer, cider, mead, kombucha and sake from over 70 small producers.

    Learn More
  • Subscribe to BeerAdvocate Magazine

    Support uncompromising beer advocacy and award-winning, independent journalism with a print subscription to BeerAdvocate magazine.