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Wine Tasting Via Computer

smooth wombat writes "What makes a good wine? Why do some wines have a smooth, almond-like bouquet while others have a sharper, more acidic bite to them? These questions and more have usually been answered by oenologists who can list the subtle nuances of a particular wine and tell you if it's good or not. However, vinters don't have the luxury of waiting until a wine is ready to be drunk to know if they have produced a good, drinkable product. Lorenz "Larry" Biegler, who teaches chemical engineering at Carnegie Mellon University, in conjunction with industry scientists in Chile, is working on mathematical formulas to automate the fermentation process, adjusting ingredients and conditions to ensure robust flavors and higher yields from grape harvests. The researchers have been collaborating for more than two years and are studying only white wines, since reds are more complex and contain solids that make them difficult to analyze."

30 of 136 comments (clear)

  1. Ouch by Kelz · · Score: 2, Interesting

    Victory Wine anyone? I don't see any wine enthusiasts buying into this.

    1. Re:Ouch by Kelz · · Score: 5, Insightful

      Not undrinkable, but creating a GOOD wine basically an art. You can't replace a Van Gogh with electronics. I CAN however see this being used to make low-quality cheap wines more consistant and a bit better while still keeping costs down.

    2. Re:Ouch by Saeed+al-Sahaf · · Score: 2, Funny
      You can't replace a Van Gogh with electronics.

      Yes, but a pretty picture and a Photoshop filter = Andy Warhol...

      --
      "Who are in control, they are not in control of anything - they don't even control themselves!" - Glen Beck
    3. Re:Ouch by ToasterofDOOM · · Score: 2, Informative

      IIRC, it was Victory Gin actually, but I see where you are coming from (Yes, I did have to flaunt my interest in Orwellian literature =D) (And I have lots of karma to burn)

      --
      I am Spartacus
    4. Re:Ouch by Kelz · · Score: 2, Interesting

      But you don't always have the same grape crop, which makes it rather impossible to copy, and thats where the human element is needed to create a great wine with different grapes every year.

    5. Re:Ouch by Fallingcow · · Score: 2, Insightful

      When it comes to rock, I like live music performances better than studio recordings, even if it means hearing a few minor mistakes. A good band never quite plays something the same way twice.

      For classical or other instumental works, I like recordings that are somewhat "dirty". I want to be able to hear a bit of a rasp from the bow on the cello strings, so that I can practically smell the rosin dust.

      I don't just want to hear sterile, perfect notes. If I did, I'd listen to MIDIs. I like studio chatter. I like improv. Hell, crowd noise is even OK sometimes.

      I think that many people have similar feelings about wine.

  2. Seeing if the wine is "Ready"? by Ruff_ilb · · Score: 4, Interesting

    Wine tasting, as I'm sure most experts will agree, is as much of an art as anything; I doubt that people will allow a computer to tell them if a wine is "good" or not, even if it's right most of the time.

    OTOH, if the computer only tells people if the wine is drinkable, or ready to be tasted, that's a different story. As long as the computer doesn't try to encroach on the "art" side of wine tasting and stays firmly on the "science" side, I think that it could be quite a useful invention - although to a tiny demographic.

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    1. Re:Seeing if the wine is "Ready"? by shawb · · Score: 4, Interesting

      Or if the computer could tell the vintner subtle variations in temperature or other factors during the fermentation process which would help improve the wine. Maybe evnetually the computer could help determine which woods would be the best for storing a certain batch. Computers wouldn't really be able to help a bad winemaker make good wine, but they could help a good winemaker make better wine.

      --
      I'll never make that mistake again, reading the experts' opinions. - Feynman
    2. Re:Seeing if the wine is "Ready"? by Ruff_ilb · · Score: 5, Insightful

      Another issue with their formula: It implies that "If we add more X to mixture Y, it'll taste better."

      When wine tasting, again, is such a subjective thing, even given the fact that they may be able to figure out what gives the wine more of a fruiter aftertaste, for example, they still don't know if they actually WANT a fruiter aftertaste.

      Again, if we get the experts deciding what would make the wine taste "better" and then working with the machine to decide what can be done to make the wine taste the way the experts want, we're still only doing something that can probably be done already (IANAWineGeek, BTW) without the aid of an expensive machine. And one expert's "better" might be another expert's "ruined"

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    3. Re:Seeing if the wine is "Ready"? by blakestah · · Score: 4, Insightful

      The company Enologix already uses a "formula" based on chemical composition to predict wine rating scores. It translates all of that winemaking into one number...one number that matters a lot.

      They contract clients who test wine at different times. It tells them how long to ferment, when to stop, if the batch will ferment faster or slower than usual, etc. And of course, in France, how much ethylene glycol to add at the end. They average a 5-6 rating point increase in the first year their clients use them.

      To take it even further, I'll use a coffee example. Illy did a LOT of scientific taste testing studies on its coffee (or in the US, espresso). They found the magical chemical formula. Then, they would test each batch, alter the chemical content to become perfect, and sell it.

      The Italians were OUTRAGED! It was as bad as cigarette makers adding nicotine to cigarettes!

      So what did Illy do? They stopped that process. Now, they draw several batches in parallel. Test all of them. And figure out how to combine them to achieve the magical formula. The end result is chemically the same, but the Italians are happy to know that Illy comes from 100% roasted Arabica beans from Brasil.

      Of course winemakers already try to do this with blended wines. But it would be pretty easy if each wine were independently chemically tested, and then the appropriate convex combination were defined to result in a 90+ Wine Spectator rating. And I'm sure many of them do this already.

  3. My pedantic moment for the day... by KingSkippus · · Score: 4, Funny
    However, vinters don't have the luxury of waiting until a wine is ready to be drunk...

    For the record, the word is vintner, not vinter.

    In Soviet Russia, vinters are wery, wery cold.

    1. Re:My pedantic moment for the day... by B3ryllium · · Score: 5, Funny

      In Soviet Russia, vinters are wery, wery cold.

      Not vhen you drink wodka on a nuclear wessel.

  4. Yeasts by TubeSteak · · Score: 2, Interesting

    http://www.distillery-yeast.com/turbo_yeast_functi on.htm

    Yea for turbo yeasts.

    I'm still waiting for yeasts that convert both sucrose/glucose & xylose to be available to your average consumer.

    Wine yeasts give 14%~18% alcohol content.
    Distillers yeast gives up to 21%
    xylose converting yeast can up the yield significantly

    --
    [Fuck Beta]
    o0t!
  5. Finally! by Average_Joe_Sixpack · · Score: 2, Funny

    ... a non-porn reason to lick my screen!

  6. Stop it right now! by rufusdufus · · Score: 4, Insightful

    some wines have a smooth, almond-like bouquet

    No they dont. Nor do they taste like chocolate, raspberries or broccoli.
    Really wine has 5 basic flavorings: 1) rotten grape 2) alcohol 3) wooden barrel 4) cork 5) mold

    1. Re:Stop it right now! by zerblat · · Score: 2, Insightful
      Right. So, I assume that objects can't be orange unless they are made of oranges, and only violets can be violet? Of course, the same goes for beige, turquoise, indigo and pretty much any other color beyond black, white, red, blue, green and yellow.

      Either that, or "chocolate", "vanilla", "burnt rubber", "red berries" etc are simply descriptions of flavors, just as "chartreuse", "lime" and "burnt umber" are descriptions of colors. Lacking a better way to classify and describe sensations, the only way to give an idea of how something tastes is to compare it to other, well known tastes.

      --
      Please alter my pants as fashion dictates.
  7. Bah. by Ruff_ilb · · Score: 3, Funny

    Old news. I've been able to debug my WINE install for ages now.

    And what's this talk about "grapes" and "yeast", are they new distros?

    --
    http://www.TheGamerNation.com/Forums
  8. Under the influence by killmenow · · Score: 2, Funny

    Being under the influence of a goodly sum of wine as I type this, I can surely tell you no computer could possibly tell good wine from Mad Dog 20/20.

    Good wine ~ good art. I can't define it, but I know it when I drink it.

    Oh, and God Bless Oregon.

    w00t! ... (hic...)

  9. Enologix by blakestah · · Score: 3, Informative

    There's a lot of money in this. Not surprisingly, a former vintner decided to make this into a company. In the past they have accurately ranked wine involved in taste comparisons by experts. Unexpectedly, they use a one dimensional scale which works, suggesting the wine judges use a one dimensional scale too.

    The exact formula is a mystery/trade secret. But it is no secret that Enologix tests many of the top wines at various points in production, and they AVERAGE a 5-6 point rating increase for the first year they are contracted by their clients.

    I've been to their web site before when it was useful and worked...right now they appear to be hosed.

  10. Funny, I'm running an experiment right now. by purduephotog · · Score: 4, Interesting

    Just finished fermenting 15 gallons of Chardonnay in glass. I'm about to rack it again to clear it and start the 'experimentation' phase- precisely how much oak is needed to make this a good wine.

    The oak selection seems to be pretty dominated by Nevers, but I wish I could find out how to buy some. There's a paper out at
    http://www.wynboer.co.za/recentarticles/0400wood.p hp3 that is rather interesting- but all in good time.

    Right now, for me personally (and I'm about to start 15 more gallons of Chardonnay and 5 gallons of Pinot Grigio) I'm going for a very light oak flavour for 5 gallons- destined for Champagne- and a heavier oak that'll sit in the bottles to be served at house dinners.

    All in all- I'll take ANY computer modeling that can help me predict what my quality will be... I just doubt it'll work unless I start investing in alot more equipment ;)

  11. Why? by Harker · · Score: 2, Interesting

    Where's the fun in that?

    H.

    --
    When VCR's are outlawed, only outlaws will have VCR's.
  12. Homogenous Wine by eander315 · · Score: 4, Insightful
    This sounds like a great way to make every bottle taste the same, from vintage to vintage and vintner to vintner. Part of the fun of drinking wine is selecting a bottle that you like from the thousands available, not to mention tasting how your favorite wine changes from year to year as the growing conditions change.

    This might work well for jug wines that no one really drinks for the taste in the first place, but even cheap table wine has subtle (or not-so-subtle) nuances that might be erased by this process.

  13. But... by BluhDeBluh · · Score: 4, Funny

    Wine Is Not Ethanol... Oh comeon. Someone had to do it.

  14. You know you should read less slashdot... by Kjella · · Score: 2, Funny

    ...when the first thought is "How else are you going to test wine?"

    --
    Live today, because you never know what tomorrow brings
  15. Industrial strength liquor production by Animats · · Score: 2, Interesting
    Wired had a big article on Enologix a few years ago. The wine industry is terrified that once wine is figured out, good wine will be cranked out on an industrial scale, by mixing ethyl alcohol, water, and flavoring.

    This has already happened in the hard liquor industry. They try to keep a low profile, but Frank-Lin Distillers makes over 1000 different brands of liquor sold on the West Coast. They use only about 100 different formulas, though. It's all about branding. They're located near the railroad yards in San Jose, where the tank cars of industrial alcohol arrive from the Midwest on their two private railroad spurs. They run tap water through an in-house deionizing and purification plant, mix it with the alcohol, add flavoring, and bottle.

    Here's a nice article about the automated palletizing system at their plant, including the three-conveyor bridge over the railroad tracks. You'll recognize the brand names on the product.

    Some quotes".
    "With an impressive assortment of distilled liquor tanks and eight automated bottling lines, Frank-Lin's San Jose, CA, plant produces more than five million cases of liquor products a year. ... During the same shift and on the same bottling line, high-end 750-mL recyclable glass bottles of Tequila may be followed by 1.5-L recyclable polyethylene terephthalate bottles of Caribbean Rum, without a glitch."

    Once wine is figured out, the vintners are going to face competition from industrial producers like that. The vintners will fight, make noises about tradition and appelation, but in the end, the industrial scale stuff will win out. Because, most of the time, it will be better.

  16. Red Wine by Fwonkas · · Score: 2, Funny

    I fear my reaction -- "Of course they could only analyze white wines." makes me a snob.

    Not that I drink much wine anyway. That there is the crazy sauce.

    --
    COMPUTER! Whatever happened to Blueberry Muffin?
  17. W.I.N.E. by Andrewkov · · Score: 4, Funny

    Wine Is Not an Emultar .. oh, wait a sec...

  18. Oh Great!... by Mikkeles · · Score: 2, Insightful

    LCD (lowest common denominator) wine.

    --
    Great minds think alike; fools seldom differ.
    1. Re:Oh Great!... by ratnerstar · · Score: 2, Funny

      And here I was hoping for LSD wine.

      --
      Just because you sold your soul to the devil that needn't make you a teetotaler. --The Devil and Daniel Webster
  19. Wine by Pompatus · · Score: 2, Informative

    Personally, my drink of choice is Crown and diet, but since I worked as a bartender for a wine bar for 2 years, I have a passing knowledge of wine. So here's my take. The statement "These questions and more have usually been answered by oenologists who can list the subtle nuances of a particular wine and tell you if it's good or not." is misleading. It doesn't matter what "oenologists" say about a wine. If you want to find a "good" wine, try out several different ones and decide which one YOU like. Then find the least expensive wine you can find that suits your taste. My 2 personal favorites are the 1999 Katheryn Kennedy Lateral, and (cant remember the year) J. Bookwalter Merlot. However, right now I'm drinking a 2003 Rosemont Estate Shiraz, because it is quite similar to those 2, but it is $9 at the local grocery. And lastly, the most important thing. After you learn enough to bullshit your way through a wine conversation (the last 2 sentances made me sound like I know what I'm talking about, huh?), you can talk about it and enjoy it while not appearing to be a drunk. Because wine FUCKS YOU UP :)

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    Squirrel ... It's not just for breakfast anymore