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Sigma - Picobrouwerij Alvinne

Not Rated.

Educational use only; do not reuse.
very good

10 Reviews
no score

(Send Samples)
Reviews: 10
Hads: 63
Avg: 3.93
pDev: 21.88%
Wants: 1
Gots: 19 | FT: 0
Brewed by:
Picobrouwerij Alvinne visit their website

Style | ABV
Flanders Oud Bruin |  10.00% ABV

Availability: Limited (brewed once)

Notes & Commercial Description:
Beer added by: Stum-pub on 08-10-2014

This beer is retired; no longer brewed.

No notes at this time.
Beer: Reviews & Ratings
Sort by:  Recent | High | Low | Top Raters
Reviews: 10 | Hads: 63
Photo of biegaman
4.06/5  rDev +3.3%
look: 4 | smell: 4.25 | taste: 4 | feel: 4 | overall: 4

Sigma is a beer that tests your reflexes - it's one you have to pour quickly or risk losing a bunch to the floor or countertop. 'Gusher' may be a little too dramatic a term for this case but that carbonation sure can climb; be sure to pay close attention when prying off the cap. The liquid itself is dark brown but not entirely opaque; gorgeous, colourful highlights are appreciated around the edges.

We have here an orgiastic array of smells that range from dried to sour fruits to chocolate and roasted nuts to sweet, rich malt. More specifically, one may note prunes, cherries, toffee, figs, dates, treacle and tootise-roll. All of these flavour elements - sweet and sour - come together triumphantly.

Sigma does have some balsamic qualities - the tart acidity and dark, inky, musty sweetness - but it doesn't overwhelm as far as sourness or vinegar-y funkiness goes. If we are going with the balsamic parallel this is certainly a 10+ year old example. In fact, it wouldn't surprise me at all to learn it was barrel-aged (even though it lacks a strong tannic, oaky presence).

Sour beers aren't for everyone. Me, personally, I love them. But I understand why some people don't like them. Sigma, however, is considerably agreeable as far as sours go. Not only is the tartness balanced but there's an unusual amount of rich, roasted maltiness. Mind you the alcohol (listed here as 7.6% as opposed to 10%) is present; it's not impeding but it is noticeable.

Belgium may have the highest national standard as far as its microbreweries go. Or they're at least one of the most consistent. Alvinne lives up to that statement and my score for Sigma reflects that. It's a beer that lives up to the traditional archetype but also offers a little modern distinction. It's a Flemish ale that should please both Old World and New World crowds equally.

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Photo of Bugs318
4.09/5  rDev +4.1%
look: 4 | smell: 4.25 | taste: 4 | feel: 4.25 | overall: 4

A: pretty dark brown, crazy foamy tan head.
S: fruity, slight balsamic, lacking wood due to steel aging
T: like mildly sweet balsamic up front, while moderately tart in the finish. Slight ethanol taste but less than one would expect for 10%
M: Medium body and pretty sharp, bold, carbonation
O: pretty good but odd without the wood.

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Photo of heygeebee
3.66/5  rDev -6.9%
look: 2.75 | smell: 3.5 | taste: 4 | feel: 3.5 | overall: 3.5

Pours very scummy, brown red body with over large bubbly froth a la seaside scum. Fades to flat cola.
Aromas muted, tho sour.
Taste better with lots of old Bruin, cherry, vinegar in the mix.
Really an Oud Briun on steroids, with not too much of the 10% on display.

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Photo of MrMeerbill
4.4/5  rDev +12%
look: 5 | smell: 4.25 | taste: 4.5 | feel: 3.75 | overall: 4.5

Best oud bruin I've had nice balance of sweet and sour with a touch of bitter if you didn't know better you would thing this is 4%abv crazy refreshing

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Photo of BEERchitect
4.03/5  rDev +2.5%
look: 3.5 | smell: 4.25 | taste: 4 | feel: 4 | overall: 4

Beautifully built of the sour brown ilk, the "wild" experiment of Alvine hits home with highly authentic flavor but packing the punch of something more... much, much more.

Nearing ten-percent, the ale pours the rusty, tawny and rustic coloration of browns weaved with reds. Its short-lived and zesty head pushes elements of toast, pecan, crabapple, lime and white wine to the forefront aromas until the flavors set in. A quick coat of steely caramel, peanut skins and toast emerge from the malty underpinnings for a balance that comes very early.

Because what follows is a fast recession of malt sweetness and the quick rise of sour grape, tart green apple, and freshly zested lime for something of a Belgian dubbel that has gone terribly wrong- but in the very best way. Going into finish, an under-ripe berry character merges with mild balsamic for a savory, sour and fleeting sweet sensation.

Its closing arguments are those of relaxes malt and tart acidity that frame the medium-light ale with a slimmer overall sensation. With cherry, bordeaux, and sour cherry resonating in aftertaste, the beer is much more drinkable, refreshing and crisp than any ten-percent beer should. It's simply dangerous.

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Photo of metter98
3.81/5  rDev -3.1%
look: 4.25 | smell: 3.75 | taste: 3.75 | feel: 4 | overall: 3.75

A: The beer is hazy reddish brown in color. It poured with a short off white head that died down a bit but consistently left a short head covering the surface.
S: Light to moderate aromas of oak and Balsamic vinegar are present in the nose along with faint hints of chocolate.
T: The taste follows the smell, having flavors of vinegar and oak along with hints of dark fruits. Bits of sourness become noticeable once the beer warms up a bit.
M: It feels light- to medium on the palate and has a moderate amount of carbonation. Faint amounts of tartness are perceptible.
O: This beer is a good representation of the style and has nice amounts of oak and vinegar in the smell and taste.

Serving type: bottle

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Photo of chinchill
3.67/5  rDev -6.6%
look: 4 | smell: 3.25 | taste: 3.75 | feel: 4 | overall: 3.75

From a bottle in Florida.
This dark saison is a malty ale with hints of figs, raisins, and dark fruit cake.
Complex and interesting. Only mildly funky.

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Photo of Immortale25
4.21/5  rDev +7.1%
look: 4 | smell: 4.25 | taste: 4.25 | feel: 4 | overall: 4.25

Poured into a Haw River Farmhouse Ales teku glass. Bottlecap says Jun 2017.

A- Gusher alert, but not too bad. Pours a dark brown color with a full two fingers worth of light brown head that retains decently before quickly popping away to a thick ring around the edge of the glass and a wispy pattern of sheer surface foam. Not-so-resilient lacing leaves small clots behind.

S- Incredibly musty, funky aroma full of wet hay and a metallic smell. Also some dark fruit, molasses and fig. Very unique.

T- Pretty strong sourness with more of that metallic note found in the smell. After the palate acclimates, a high drinkability is achieved as I find myself craving more and more sips. The alcohol is superbly well-hidden behind the acidity of the wild yeast. Notes of red grape, blackberry and even a bit of blueberry.

M- Dry almost to the point of being chalky. Medium carbonation and a body that leans toward the fuller side.

O- A very original take on a Flanders Oud Bruin. Has a tannic red wine characteristic to it that you don't find as often in the style. Surprisingly smooth for how strong and complex it is.

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Photo of dcmchew
3.91/5  rDev -0.5%
look: 3.75 | smell: 4 | taste: 4 | feel: 3.75 | overall: 3.75

Dark brown, almost black, a huge frothy tan head that pops off rapidly, leaving a small sticky speck around.
Smell of tart cherries with a lick of chocolate, some sweetish toasted malt, lactic sourness, caramel, faint lemon juice, faint blueberry.
A short flash of lemon juice, really sour, covered immediately by some toasted malts, and some mellow caramel sweetness. Lactic sourness and some cherry notes throughout, until the slightly roasted finish (bit of cocoa in there, too). A mild herbal funk in there too.
Aftertaste has dry lemon peel, bread crust, lingering yeasts. Medium body, medium carbonation.
Nice, but not as dry and refreshing as other dark sours.

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Photo of clayrock81
3.86/5  rDev -1.8%

Poured a brown body with good head and minor lace ring.
Has a tart/sour aroma with hints of caramel malt sweetness and dark fruits like figs.
Light to medium bodied beer that is juicy and t art that maintains a sharp, crisp bite to it.
Balanced as the low-key sugary sweet malts keep the sour patch flavors (tastes like sour apple and cherry) from making beer too sour.
A nice sour that is light and maintains a little bit of fullness and sweetness.

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Sigma from Picobrouwerij Alvinne
86 out of 100 based on 10 ratings.