Tag Archives: Ronald S. Jackson

Playing the Cellar Lottery — When Should You Open Up That Bottle?

Someone in South Carolina last month won $1.537 billion playing the Mega Millions lottery.

Photo by Lieutenant Ramathorn. Uploaded to Wikimedia Commons under CC-Zero

At the peak of the frenzy, retailers were selling 12,700 tickets a minute. It reached a point where so many people were playing, that experts estimated that all possible 302,575,350 combinations of numbers were likely claimed before the jackpot was finally won.

I didn’t get a ticket. Though I used to be quite a gambler in my younger days, now my risky activities involve more playing the Somm Game in Vegas and maybe putting a few dollars down on my St. Louis Cardinals, Blues and Mizzou Tigers.

Besides, I’m playing the lottery virtually every time I pull a bottle out from my cellar.

Sometimes I hit the jackpot and open up a wine at a point when it perfectly fits my palate. Other times it may be too young and “Meh-y”. Worst of all is when it is far past its peak time for giving me pleasure.

It’s always a gamble but, like a good gambler, I try to hedge my bets. With a little knowledge, you can too.

Hitting a Moving Target

The first thing we need to do is understand what is happening to a wine as it ages. While it looks simple on the surface, a bottle of wine is a living chemistry lab with an endless progression of reactions taking place between acids, phenols, flavor precursors, alcohol compounds and the like. It is estimated that there is anywhere from 800 to over a 1000 different chemical compounds in a typical bottle of wine.

All of these compounds will react differently to the unique environment of wine that is majority water (which we remember from high school chemistry is “the universal solvent”) as well as alcohol–which is also a pretty darn good solvent itself. Then you add in the potential reductive reactions (especially with screw caps) and slight oxidative reactions (especially with cork) and you have a whole cooking pot of change that is constantly happening to that bottle of wine sitting in your cellar.

Photo by tympsy. Released on Wikimedia Commons under CC-BY-SA-2.0

Or a video game with that damn mocking dog

In many ways, it’s like a story that is constantly having a new chapter being written. That can be exciting as with each page you turn–each month or year you wait–you never quite know what’s going to happen next.

In other ways, it’s like a carnival game with the moving duck targets that you’re trying to hit to win a prize. Those can be fun or immensely frustrating.

Resources for more geeking

I don’t want to bog you down too much with the geeky science at this point. However, for those who do want to understand more about the chemical compounds in wine and how they change over time here are my three favorite wine science books on the topic.

Starting with the least technical (and easiest to read) to the uber-hardcore tome of wine science geekdom:

The Art and Science of Wine by James Halliday and Hugh Johnson. A tad outdated (2007) but this text covers the basics really well. The last section “In the Bottle” deals with the components of wine with a chapter specifically dedicated to what happens as a wine ages (“The Changes of Age”).

The Science of Wine: From Vine to Glass by Jamie Goode. There is a reason why Jamie is one of my favorite tools. He’s a brilliant writer who can distill complex science into more digestible nuggets for those of us who do not have a PhD. Like with Halliday and Johnson’s book, this will also spend a significant amount of time talking about the science behind viticulture and winemaking but in section 3, “Our Interaction With Wine”, he gets into how the changes happening to wine (as well as the environment of tasting) impact our perception of a wine’s components. This is very important because so much of knowing when to open a bottle of wine will depend on knowing when’s it good for you–something I’ll discuss more about below.

Wine Science: Principles and Applications by Ronald S. Jackson. This was one of my textbooks when I went to winemaking school so I won’t sugar coat how technical and dense it is. This is definitely not something you can read from cover to cover like with the first two books above. But if you really want to dive deep into the chemistry, there is no better resource out there. If you come from a non-scientific background, I do also recommend picking up some of the “For Dummies” refresher books like Chemistry Essentials and Organic Chemistry. Silly titles aside, those books certainly helped this Liberal Arts major understand and appreciate Jackson’s insights a whole lot more.

That said, I’m going to condense here some of what I’ve learned from those books above as well as my own experiences (and mistakes) in figuring out when to open a bottle.

What’s Happening to the Fruit?

When most people think of wine, they think of fruit. Therefore, it’s vitally important to understand what is happening to the fruit as a wine ages.

A good way to start is to think about cherries and the different flavors of its various forms.

Collage of photos from Wikimedia Commons from (L to R) George Chernilevsky released under PD-self; rebecca small released under CC-BY-2.0; Geoff released under CC-BY-SA-3.0

A young wine can taste like freshly picked cherries.
With some age, the cherries flavors get richer and more integrated with the secondary notes of wine.
Gradually the fruit will fade till you’re left with the dried remnants.

Young wines (like say an Oregon Pinot noir) will have the vibrant taste of its primary fruit flavors–such a cherries picked right from the tree. Combined with the wine’s acidity, these cherry flavors with taste fresh and even juicy. But they can also be quite simple because the freshness of the fruit dominants. Think about eating ripe cherries. While delicious, there isn’t much else going on.

With a little age (like 5 to 10 years for that Oregon Pinot noir), the fruit gets deeper and richer in flavor. Think of more canned cherries that you would use to make a cherry pie. The wine will also have time to integrate more with the secondary flavors of the wine that originated during the fermentation and maturation. This often includes oak flavors like the “baking spices” that French oak impart–cinnamon, allspice, nutmeg, etc. These additional flavors add more layers of complexity. The fruit is still present. It’s just not as fresh and vibrant tasting as it once was.

Older wines with more age will see the fruit progressively fading. The flavors will start tasting like dried cherries as earthy and more savory tertiary flavors emerge. In the case of our Oregon Pinot, this could be forest floor, mushroom or even dried flowers and herbal notes. Eventually these tertiary flavors will completely overwhelm the faint remnants of dried cherries notes. When that happens will depend on the producer’s style, terroir and vintage characteristics. For me, I tend to notice the Oregon Pinots in my cellar go completely tertiary after 15 or so years.

Now…is that a good thing or a bad thing?

It depends. On you.

When Is Your Peak Drinking Window?

While nearly ever critic in the world will toss out “peak drinking windows” with their scores, that info is utterly useless if you’re not sure what you like.

Some people like lots of earthy, savory tertiary notes. That’s perfect and often the tail end of these critic’s windows will take those folks right through that sweet spot.

Other people might want more fruit and find those very aged wines to be disappointing. That’s also perfect because they may want to start opening up their bottles at the beginning of those windows or even a little before.

For me, I tend to like my wines just on the wane of the “pie filling fruit” stage when some of the tertiary notes are emerging but the wine still has a solid core of fruit. Going back to Oregon Pinots, I often find that between 7 to 12 years is my perfect window. However, in warm vintages, like 2009 and 2012, I’ve noticed an accelerated curve with many wines hitting my sweet spot starting at 5 years of age from vintage.

And sometimes it might not ever live up to James Suckling’s 96 point scores.

BTW, while we’re talking about critics. Keep in mind that when many professional critics give their scores out for wine, they are rating the wine based on how they think a wine is going to taste at its peak (i.e. during that window)–not necessarily how the wine is tasting right now. That’s the critic’s cover if that 96 point wine you’re buying based on the high score doesn’t live up to the hype. But even then, a critic’s “peak window” still might not match yours.

What’s Happening to the Structure?

Now fruit is just one component of the wine that’s impacted by aging. Often with bigger reds like Bordeaux varieties, a primary motivation for cellaring is to give the wine time to allow the structure of tannins and acid to soften.

A good way to picture this is to think of the “bite” of firm tannins and acid as like a triangle with sharp edges. Below is a diagram that I recently used for a class I taught on Bordeaux wines based on my experiences of cellaring and drinking Bordeaux.

As the wine ages, some of the structure will soften but it won’t completely go away.
Also, as we discussed above, the core of fruit will still progressively fade.

The “softening” comes from the polymerization of the tannins as they link up with each to get bigger. These larger molecules tend to feel less aggressive on the palate. Think of it like adding tennis balls to round out the sharp edges of the corners of our triangle. The tannins are still there (as is the acid) but you feel their affects differently.

Eventually the wine will reach a point where it can’t get any softer. The triangle will never completely become a circle. That last bastion of a wine’s structure will not only be defended by the remaining soldiers of tannins but also by its acidity–which never goes away. While richer and deep fruit flavors (as well as complimentary flavors from esters) can help mask acidity during a wine’s prime, an aged wine will eventually start to taste more acidic and tart as that fruit fades.

However, that acidity will amplify the savoriness of tertiary flavors so, again, this all comes back to knowing what style of wine gives you the most pleasure. More fruity? More savory? Somewhere in the middle?

Learn From Other People’s Sacrifices

While critic’s drinking windows have some value, the very best resource on deciding when to open a wine are sites like Cellar Tracker.

Here you can track the progression of a wine through the impressions of other people who are sacrificing their bottles to Bacchus. Pay attention to the notes. Are they still talking about lots of fruit character? Big tannins? Or are the notes littered more with savory tertiary descriptors?

Now, yes, these folks will likely have different palates than you which is going to color their impressions. How they describe a wine yesterday might not be the same as how you would describe it today. But it is another data point that you can use to determine if it’s worth pulling the cork.

Lessons from Jancis Robinson

I have evolved my own theory that overall, vastly more wine is drunk too old than too young. — Jancis Robinson, November 26th, 2004

Jancis’ advice is even more valuable now than it was 14 years ago. In that time, we’ve seen quite a bit of change in the wine industry–including our ideas about cellar-ability. Part of it is the culture of impatience and desire for immediate gratification. Wineries know that they often don’t get a second chance at a first impression so a lot of effort takes place in the vineyard and the winery towards producing wines that are enjoyable soon after release.

We’re not even talking about whites and roses either.


Those efforts sometimes do involve a trade-off with a wine’s potential to age. The simple truth is, not many are being made to age anymore. In fact, some estimate that as much as 98% of the wine made today should be consumed within 3 to 5 years of the vintage date.

Now keep in mind, the vast majority of the world’s wines are made to be daily drinkers under $20 so that 3 to 5 year estimate is not that drastic. But even for more expensive bottles that you may be saving for a special occasion, I would encourage you to think about opening it up sooner rather than later.

For me, the math is simple.

If you open up a bottle too soon, there is still the potential that you could find another bottle to open later. Yes, you may have to do some hunting and pay a little bit of a premium but that potential still exist. Plus, you are still likely to get some pleasure from that bottle even if it wasn’t “quite ready”.

But….

If you open up a bottle too late, when the wine is far past the point of giving you pleasure, you’re screwed. All that time and all that investment went for nil.

There’s always a gamble when aging wine but, ultimately, it’s best to cash out when you’re ahead.

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Wine Competitions — Should Wine Drinkers Care?

The 2018 Winter Olympics in PyeongChang has wrapped up. However, the medals will be flowing all year long in the wine world.

So far this year we’ve had the San Francisco Chronicle Wine Competition give out over 4000 gold, silver and bronzes. Meanwhile, the American Fine Wine Competition announced 14 pages worth of winners. Oh and the Winemaker Challenge International Wine Competition also gave out a hefty haul of hardware.

Still to come:

Finger Lakes International Wine Competition (March)
Sommelier Wine Awards (March)
California State Fair Commercial Wine Competition (March)
Seattle Wine Awards (April)
International Wine Challenge (April)
International Rose Championship (April)
Decanter World Wine Awards (May)
Los Angeles International Wine Competition (May)
Dan Berger’s International Wine Competition (May)
Concours Mondial de Bruxelles (May)
International Women’s Wine Competition (July)
And oodles and oodles and oodles more.

There are so many competitions out there giving wineries boatloads of awards that I’m honestly surprised that Oprah has not gotten in on the action with her own wine competition.

YOU get a medal! YOU get a medal! Everybody’s getting a MEDAAAAAAAAL!!!

God knows how many medals the Tasters Guild International Wine Judging gives out.

Unlike the Olympics where there is a finite amount of medals awarded for each event, wine competitions can give out virtually a limitless number–which stack the odds in a winery’s favor.

In 2015, Victoria Moore of The Telegraph noted that of the nearly 16,000 wines entered in the Decanter World Wine Awards, around 70% won some kind of award. At the International Wine Competition (IWC) they gave out 490 golds, 2,110 silvers, 3,426 bronzes and 3,668 commended awards.

For their 2012 event, W. Blake Gray of Palate Press highlighted that the San Francisco Chronicle Competition (one of the largest and most recognized wine competitions in the US) gave medals to more than 80% of the wines entered.

Who benefits from all these competitions?

I don’t think you can be blunter than Master of Wine Sarah Jane Evans in her article “So you want to be a wine judge?”

Remember that ultimately you are doing the judging for the winemaker and brandowner. They want to enter or remain in your market, and the medals and scores enable them to do so. Like a good parent or teacher, try to find the good points in any wine. — Sarah Jane Evans 2/20/2018 WSET Blog

Wine competitions are all about marketing for wineries. Paying a $55-175 entry fee per wine and sending in 4 to 6 bottles is pretty darn cheap economics if you happen to strike gold (pun intended). Even a lowly bronze medal has benefit for wineries.

Not Mortally Flawed.

Granted, it mostly plays off the ignorance of wine consumers who assume that winning a bronze medal meant that the wine was the 3rd best out of thousands. Most folks don’t realize that a bronze often says that a wine was “not mortally flawed”–as Lenn Thompson of The Cork Report describes. In that same post, Thompson goes on to explain why he and his team no longer participate as judges for wine competitions.

Plus, you can take that obscure award you won 7 years ago and use that sticker for everything.

Think of how much mileage that Gallo has gotten off of touting the 2000 medals that their Barefoot brand has won from entering practically every wine competition in existence? It doesn’t matter if they were gold, silver, bronze or whatever. Likewise, Constellation Brands widely advertises their 50+ gold medals (from whom?) for their Black Box wines.

Gallo and Constellation didn’t become multi-billion dollar companies by throwing away money. They know there is a benefit in flooding wine competitions with their wines.

There is also a strong argument that the competitions themselves are the biggest beneficiaries–generating revenue from not only entry fees but also sponsorship & naming rights (for instance, the San Francisco Chronicle Competition is not run by the newspaper, they’re merely a sponsor), tickets to tastings featuring award winners and selling medal stickers to wineries.

Is there any value for consumers?

A little…

The shiny stickers are very pretty though.

You have to start with acknowledging that, as Ronald Jackson notes in Wine Tasting: A Professional Handbook, the purpose of wine competition is to increase market awareness for wineries–to get your attention. They don’t exist for the benefit of giving you an unbiased and objective recommendation of what to drink.

It’s okay to give them that attention and maybe even buy their wines to try. Just like with everything in life, you will never know how much you like something until you try it. If being curious about a medal winner is a reason for you to trade out your same ole, same ole for something new then go for it.

But you should keep a few considerations in mind.

1.) Know that it’s okay to disagree with the results — because most likely the judges themselves disagreed after 30 minutes

Any post about wine competitions would be remiss without acknowledging the studies by Robert Hodgson into how inconsistent judging is at competitions and how seemingly random the results are. Wines that were gold medal winners in one flight of tasting were just as likely to be scored as bronze winners in the next flight by the same judges.

Tasting wine is highly personal and extremely subjective. There are so many things that influence how we perceive a wine and whether or not it gives us pleasure from the ambiance of the room, the glassware, our mood that day, the wine we just had before, etc. Wine itself is also a moving target that not only changes in the bottle but changes in our glasses as well. Plus, just as some of us weren’t great “test takers” at school, some wines simply don’t show well being “tested” on their own and often need the context of food and social occasion to give pleasure.

That is why you have to view wine awards (as well as critic scores) as only a single snapshot of how that wine tasted at that moment to that particular judge. Just like if your friend had this one great bottle of wine at dinner that you have to try, take a wine competition result with the same “your mileage may vary” caveat. While that wine may have been great for them at that one moment, that doesn’t mean it’s going to be great for you and your moment.

2.) Pay attention to who gave out the medals

A Platinum winner that was likely judged by at least 2-3 MWs and Master Sommeliers might be worth taking a look at.

With no offense to Podunk State Fair, there is a bit more cache to having your wines judged by a panel of Masters of Wine and Master Sommeliers that competitions like the IWC, Decanter World Wine Awards, TexSomm and a few others regularly have.

Even if MWs & MS are stacking the juries, there is still something noteworthy when you look at the lists of judges for competitions like San Francisco Chronicle Competition and Seattle Wine Awards and see acclaimed writers, sommeliers, educators and winemakers.

Yes, these events still give out way too many medals. Yes, the judging of even highly trained professionals is still subject to vagaries. But if you are going to pay attention to the results of any competition, it’s worth having an idea of who was doing the judging.

Be extremely skeptical of any competition that doesn’t have a published (and updated) list of who their judges were and their credentials.

3.) Give Double Golds a double look

In the Seattle market, the high esteem of the judges and caliber of wines entered into the Seattle Wine Awards gives their Double Gold and Best of Class winners a fair amount of cache.

While all the caveats above about wine competitions being just a single snapshot of a wine hold, there is something to be said when that snapshot involves all the judges of a panel unanimously thinking that a wine is worth a gold medal. This

Then you have “Sweepstakes Winners” and “Best in Show/Best of Class” that often require the wines going through another round of judging with different tasting panels. This is like a second snapshot taken. If a wine does well there, you know that it had to have impressed around a dozen or so people.

The wine still might not be your personal style but the odds of a Double Gold/Sweepstakes winner from a reputable wine competition being “junk” is fairly low.

Don’t be afraid to try the highly touted “Award Winners” but still keep a healthy amount of skepticism–especially if someone is giving you a hard sell on their bronze medal winning wine from the Podunk State Fair.

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Wine Geek Notes 2/27/18 — Wine Competitions

Photo by Javaongsan. Released on Wikimedia Commons under  CC-BY-SA-4.0I’m doing research on how effective wine competitions are for wineries and how much they may benefit consumers. This is what I’ve been reading today.

Interesting Weblinks

Understanding Wine Competitions (Nov. 2006) by Lisa Shara Hall at Wine Business Monthly.
Great PDF file at the end with listings of several major American Wine Competitions.

The truth about wine awards: why medals don’t mean great bottles (May 2015) by Victoria Moore at The Telegraph.
Interesting stats about the medal award rates at the Decanter World Wine Awards and International Wine Challenge (IWC)

Marketing Matters: Wine Competitions That Help You Sell (October 2007) by Tina Caputo at Wines & Vines.
A pro-wine competition slant, especially in the case of regional wine competitions.

We Won’t Participate as Judges in Wine Competitions: Here’s Why (August 2010) by Lenn Thompson at New York Cork Report.
Talks about some of the behind the scenes vagaries with judging. The story about different judges responding to Brett in wine had resonance for me.

How American Consumers Select Wine (June 2008) by Liz Thach at Wine Business Monthly.
Downplays the role of medals in influencing American consumers’ decision to buy wine. The fact that the #1 influencer for both retail and restaurant consumers is previous tasting experience with a wine is something worth exploring more. Bookmarking this link because this has a lot of good info.

Photo by Concoursmondial © Concours Mondial de Bruxelles - Giuseppe Napoli. Released on Wikimedia Commons under CC-BY-3.0

Tasting at the Concours Mondial de Bruxelles competition in 2010.


Wine Competition: For Whom the Medals Toll? by W. Blake Gray at Palate Press.
More behind the scenes judging insight and differences in American vs European competitions. Also pointing me in the direction to read more about Robert Hodgson’s studies.

An Examination of Judge Reliability at a major U.S. Wine Competition by Robert T. Hodgson on wineeconomics.org.
The aforementioned study with interesting charts.

Good Ole Fashion Books

Wine Tasting, Third Edition: A Professional Handbook by Ronald S. Jackson.
Chapter 6: Qualitative Wine Assessment goes into the value of wine competitions for wineries and the importance in having judges who are trained in sensory evaluation and experienced in the wine styles they are judging.

The Business of Wine: An Encyclopedia by Geralyn and Jack Brostrom.
Section F: Festivals, Trade Shows and Competition goes into the usefulness of wine competitions for marketers and retailers. Also emphasizes the importance and qualification of the judges.

Wine Marketing & Sales, Second edition by Janeen Olsen, Liz Thach and Paul Wagner.
Chapter 8: Wine Budgets and Pricing goes into the cost associated in entering competitions and their potential impact on wine pricing. Also makes the interesting point that for supermarket wines, having a floor stack is far more valuable than a gold medal.

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What’s fine (and not so fine) about Vegan Wines

Photo by www.Pixel.la Free Stock Photos. Uploaded to Wikimedia Commons under CC-Zero

Veganism is described as one of the fastest growing lifestyle movements in the world. Some estimates claim that in the United states alone, there was a 500% increase between 2014 and 2017 in the number of Americans (around 19 million) identifying as vegan.

For the wine industry, that is a sizable demographic that retailers and wineries have value in marketing to.

So what makes a wine “vegan-friendly”?

For the most part, veganism is a code of conduct that avoids using any animal products or by products as well as anything that has been tested on animals. There are various reasons why people adopt veganism but often ethical concerns about the treatment of animals and impact on the environment are cited.

While wine is often assumed to be vegan, the use of animal-based fining agents such as casein (milk protein), albumin (egg whites), isinglass (fish bladders) and gelatin (animal collagen) in winemaking is problematic for many vegans.

Let’s Talk About Fining Agents

As Alison Crowe notes in The Wine Maker’s Answer Book, fining agents are used to help clarify and stabilize wine by binding to molecules such as proteins and excess tannins. These are items that can cause unsightly haze in the bottle, aggressive bitterness on the palate, off odors and flavors. The agent binds to the target molecule to form larger structures that eventually precipitates and settles to the bottom of tank or barrel as sediment.

Bruce W. Zoecklein et. al in Wine Analysis and Production classified the various fining agents into 8 categories based on their nature.

Photo by self. Uploaded as User:Agne27 to Wikimedia Commons under CC-BY-SA-3.0

Isinglass and bentonite fining trials.

1.) Earths like bentonite and kaolin
2.) Proteins like the animal based ones above
3.) Polysaccharides like gum arabic and Sparkolloid
4.) Carbons like activated carbon
5.) Synthetic polymers like polyvinylpolypyrrolidone (or PVPP)
6.) Silica gels like silicon dioxide or Kieselsol
7.) Tannins often derived from insect galls on oak leaves though oak chip fining can also fall into this category.
8.) Others which includes both enzymatic fining (more fining aids rather than fining agents) and chelators that assist in the removal of metals such as “blue fining” with potassium ferrocyanide (illegal to use in the United States).

The different fining agents work on principles of electrical charge (like positively charged gelatin reacting with negatively charged tannins), bond formation (like the carbonyl group of PVPP bonding with the hydroxyl group of tannins) and by absorption/adsorption (like activated carbon absorbing off odors or bentonite adsorbing proteins).

There are positive and negative attributes to each fining agent with no one fining agent being perfect for every situation.

Animal-based Fining Agents

Egg whites (Albumin)

Used primarily to remove excess tannins. Works by forming hydrogen bonds with the hydroxyl groups of tannins. Compared to other fining agents like gelatin, albumin tends to remove less positive flavor and aroma traits. Egg whites have a long history of use in winemaking in places like Bordeaux and Burgundy. The usual addition is 1 to 3 egg whites per 225L (59 gallon) barrel.

Casein (Milk protein)

Used primarily to remove browning or pink color in white wine. Can also be used to remove some off odors. Works by adsorption and attracting negatively charged particles. Like with egg whites, it has a long history of use in wine production, particularly with the great white wines of Burgundy. It also has the benefit of reducing the concentration of iron and copper in wine. In red wines, it can negatively impact the wine by removing the polyphenol resveratrol that has been associated with various health benefits.

Gelatin (derived from the boiling of animal tissues like bones and tendons)

Used primarily to remove excess tannins. It has a positive charge that reacts to the negative charge of harsh tannins. It can be prone to over-fining that can strip a wine of positive flavors and aromas.

A heat stability trial for rose wines that have been fined with isinglass.

Isinglass (derived from the air bladder of fish like sturgeons)

Used primarily to help clarifying wines, remove excess tannins and to “unmask” or bring out varietal character.

Chitosan (derived from chitin in the exoskeleton of crustaceans)

Used primarily to remove haze causing proteins from white wines. A positively charged agent, it often needs to be paired with a negatively charged fining agent like Kieselsol to be most effective.

Blood Albumen (derived from the blood of ox and cattle)

Historically used but illegal in the United states, France and several other countries.

Vegan-friendly Alternatives

The website Barnivore is a database of wines and other liquors that have been vetted by users to be either “vegan-friendly” or not. In answering queries about their use of animal based fining agents, many wineries share their alternative methods.

Photo by self. Uploaded as User:Agne27 to Wikimedia Commons under CC-BY-SA-3.0

Letting the wine settle and clarify on its own before racking into another container is one method to avoid using fining agents.

One common method is the use of time and gravity to let the wine settle and clear out on its own. This is the technique used by Baldacci in the Stags Leap District and many other wineries. Depending on several factors like the health of the grapes, method of pressing, pH and temperature, this method could take several months and even then the wine might not be completely stable. Some wineries facilitate this method with the use of mechanical centrifuges and ultra-filtration but these carry the risk of being overly aggressive and potentially stripping the wine of positive flavor and aroma attributes.

Along those lines, many wineries adopt a hands-off method of not fining or filtering their wines at all. This is the method used by many high-end wine producers like Black Cordon and Kapcsandy in Napa Valley. This does carry the risk of haze and sediment developing in the bottle. However, the risk is often presented to consumers as a trade-off for having potentially more complex and flavorful wines.

Bentonite and Yeast Fining
Photo by self. Uploaded as User:Agne27 to Wikimedia Commons under CC-BY-SA-3.0

The lees sediment and volume loss from bentonite can be significant (between 5-10%). Using counter-fining agents like isinglass can help with lees compaction but would obviously make the wine not vegan-friendly.

The most used “vegan-friendly” fining agent is bentonite. This is a type of clay that can dramatically swell in size to adsorb protein molecules. This is the method used by wineries like Chinook in Washington State, Ideology in Napa Valley, Spier in South Africa and many others. One big drawback is that it causes significant loss of wine volume due to the heavy sediment it creates. As much as 5-10% of volume could be lost. Roger B. Boulton et al notes in Principles and Practices of Winemaking that these voluminous bentonite lees also create a large amount of solid waste that can have an environmental impact (such as sealing percolation ponds) if not properly disposed. In red wine, there is also a risk of color loss.

Some wineries like Amici use the technique of “yeast fining” for wines like their 2013 Russian River Pinot noir. This involves adding fresh yeast to a wine.  The cell walls of the yeast contain about 30% positively charged proteins. These can then adsorb many polyphenols and compounds which cause off odors. It brings the risk of the yeast breaking down as lees, releasing sulfur compounds and enhancing reductive notes. Also, if not removed by filtration, the yeast in the bottle can start re-fermenting any residual sugars. This would cause spritziness in what is, otherwise, supposed to be a non-sparkling wine.

PVPP and Other Methods

PVPP is a synthetic polymer that can remove bitter tannins and brown discoloration from white wines. Like casein, it can remove the polyphenol resveratrol from red wines. There is also a risk of overfining. This is because the PVPP also binds to desirable tannins and anthocyanins needed for structure and color.

Sparkalloid is a blend of polysaccharides and diatomaceous earth (fossilized algae) that can be used to clarify white wines. It does take significant time to eventually settle. This also creates a fair amount of waste with the DE that requires proper disposal.

Activated Carbon can be used to remove off-odors such as mercaptans (rotten eggs, burnt match). It does have the risk of overly oxidizing wine as well as stripping color and resveratrol from red wines.

New Developments on the Horizon

Ronald S. Jackson notes in Wine Science that fears about the prions potentially in gelatin and “Mad Cow” disease, encouraged studies into the use of plant proteins like wheat gluten as a substitute for gelatin. (Note: most gelatin used in US winemaking is derived from pigs rather than cows) Likewise, a New Jersey company has been experimenting with using pea proteins in conjunction with bentonite and silica as an alternative to gelatin.

Interest in food allergies have also spurned innovations with Scott Labs developing a technique to isolated chitosan from the fungus Aspergillus niger (instead of shellfish and crustaceans) that can be used as a fining agent.

The California based ATP Group has developed a way to extract tannin powder for fining from white wine grapes instead of insect galls to help soften tannins.

In 2016, a Swiss company announced that they were experimenting with the use of UV light to soften tannins in lieu of using animal-based protein fining agents.

The Biodynamic Quandary

Are wines produced from fruit sourced from biodynamic vineyards truly “vegan-friendly”? Several of the “preparations” used in biodynamic viticulture require the use of animal products such as cow horns (BD 500 and 501), stomachs, intestines and bladders.

In an anecdotal account of a visit with the vineyard manager of the biodynamic Pinot noir producer Sea Smoke, Kirsten Georgi (The Armchair Sommelier), describes how the “Biodynamic approach” to removing gophers without the use of poisons or chemicals involves trapping several gophers, killing them, burning their ashes and spreading those ashes over the vineyard during winter solstice as a means to “scare off” the rest of the gophers. This method of “peppering” vineyards with the ashes of pests is not unique to Sea Smoke with recipes on biodynamic websites recommending its use for everything from weeds, snails and insects to mice, rats, rabbits and opossum.

PETA Approved?
Photo by Mark Smith. Uploaded to Wikimedia Commons under CC-BY-2.0

Manure composting at a biodynamic vineyard in Tasmania.

Despite these practices, organizations like PETA recommend biodynamic wineries as “vegan friendly”. The UK website Vegan Wines Online notes that while “…natural animal products can however be used in the growing process all the biodynamic wines they sell are somehow suitable for vegans.

Even organic viticulture could be problematic with the use of animal-derived bone and blood meal being used in lieu of chemical fertilizers. There is even debate if manure, as an animal by-product, is acceptable. Like honey and milk, manure doesn’t require killing the animal but still often requires farming to acquire.

What about the presence of insects in healthy and vibrant organic vineyards? Does that makes a wine less “Vegan-friendly”? Eschewing the use of chemicals often means more insects as MOG (material other than grapes). Absent expensive sorting these bugs can get caught up in the harvest. On the Barnivore website, Calcareous Vineyard in Paso Robles expressed this reservation though their wines were still classified as “vegan friendly”.

More Manipulated=More Vegan-friendly?

Are the most “vegan-friendly” vineyards the ones being farmed with heavy saturation of pesticides and chemical fertilizers? It seems like it when you compare it to organic and biodynamic vineyards with high insect MOG and animal-derived fertilizers.

Mass produced wines like the PETA recommended Sutter Home and Moët & Chandon often employ these conventional, chemical dependent styles of viticulture.

While avoiding using animal-based fining agents to remove excess tannins and haze forming proteins, big mega-corps can use other tricks to manipulate the wine with things like lab designed enzymes, oak adjuncts and Mega Purple which will “smooth out” bitter tannins and cover up off-flavors.

Just a single drop of Mega Purple had this white Riesling looking and smelling like a Grenache rose. Crazy stuff.

Sure, Charles Shaw reds (Two Buck Chuck), Sutter Home Cabernet Sauvignon, Meiomi Pinot noir and Yellow Tail reds are made without animal fining agents but should vegans (and really all wine drinkers) be concerned with what other products are being used to make these wines?

And while it can be exciting to see advances in the use of pea proteins and fining agents derived from fungi like Aspergillus niger, its worth asking if these are only adding to the laundry list of the 60+ (and counting) additives that can be used in winemaking–taking it even further away from being just “fermented grapes”?

Now What?

While I’m not vegan myself, I wholeheartedly support anyone that chooses to live their life by convictions. I respect their ethical concerns for the treatment of animals.  I also share their concerns about the environment animal products have. It’s not my wish to stress-out vegans who just want to relax and enjoy a nice bottle of wine.

I do believe it is fair to think about the big picture involved in many seemingly “vegan-friendly” wineries.  Often the viticulture and winemaking practices they use may not align with the ideals of many vegans.

However, it is clear from sites like Barnivore that there are tons of environmentally conscious wineries (many of which are even owned by vegans) that are producing vegan-friendly wines. They may not be the easiest to find at grocery stores or restaurant wine lists that can be dominated by the portfolios of the large mega-corps but these often small family-owned wineries are well worth seeking out and supporting.

And that’s something that I think both vegans and non-vegans can drink to.

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