Thursday, May 27, 2004

Through A Glass Darkly
As noted in a couple of previous posts (April 26 and 27) the color of a wine can dramatically influence taste perception. One way to avoid that problem is to taste using an opaque glass; that is, a glass that does not allow the color of the wine to be seen. Oh yes, such glasses do exist. Riedel have one called the Blind Blind. You can find a review of it here. A slightly cheaper….Did I say slightly? A much cheaper version can be found here. Both glasses are black so that even if you look into the glass you will not be able to tell the color of the wine you are tasting.

Do I recommend that you use either of these glasses? In a word, No! Why? Well color (as we are about to learn any day now!) can tell you a lot about a wine. This is why you should always use a transparent glass with no etching or coloring when tasting. However if you want to test your ability to taste without the influence of the wine’s color, or if you want to demonstrate the influence of color on taste perceptions, then by all means get some of these glasses.

Which glass should you get? Oh, what the hell! Get the Riedel for yourself. And the cheapies for anyone else brave enough to taste truly blind along with you. I wonder if that’s why Riedel call it Blind Blind!

Monday, May 03, 2004

A Matter of a Lack of Taste?
Having now finished The Accidental Connoisseur : An Irreverent Journey Through the Wine World by Lawrence Osborne I’m afraid my original dislike has not softened. There are so many faults with this book that it would take too long to cover them all, so I’ll limit myself to a few highlights. One of a number of factual errors has been noted in the post for April 15, 2004. Another major concern is trying to figure out the purpose of the book. For the author “Wine is a dangerous game”. He does “not trust my own taste”, and so “To discover my own tastes in wine, I would have to discard both books and science, and go into the world of wine and drink.” But by the end of the book the author is simply learnt that he is more aware of his ignorance of wine. What is disturbing throughout the book is that the author seems to take little joy in his wine journey, his Irreverent Journey. He shows little appreciation for the established figures of wine in both Europe and California, their egos, their wines, or the high prices their wines command. But such controversy is not new to the wine world. Osborne does seem to have more affinity for the wine mavericks, those that criticize the egos and the high prices, but still he remains reluctant to let his taste buds commune with them while drinking their wines. By the end of his journey he seems bored with his search, and the last few chapters might have been better in a travel guide of Italy.

The greatest concern is that Osborne’s wine world is a small world, indeed. It primarily consists of a few interviews with winemakers here and there in the US, France, and Italy. What happened to Spain, Portugal, Australia, New Zealand, South Africa, or Chile? Where are the interactions with those who actually drink wine? What about discoursing with wine connoisseurs, professional and amateur alike? For yes, Osborne also seeks to be a connoisseur! Osborne’s wine world is so limited, its no wonder his search was unfulfilled.

There may be another reason why Osborne fails to learn taste during his wine journey. Simply put, he seems to have very little taste. The clue to this comes from his own statement (p133) “I cover my food with mountains of salt; I like my chocolate as black and bitter as pitch.” My original concern with this book is Osborne’s ignorance of the biology of taste, and this is his undoing. By any definition his taste buds are so poor that he may well qualify as a “non-taster”. One is thus left to ask the question, what am I going to learn from the journey of a non-taster as he seeks, unsuccessfully, to acquire taste?

Tuesday, April 27, 2004

A Little More on Color and Odor Identification
Any day now we are going to get to that second s. But first.........

The effects of color on odor identification were tested under color appropriate, inappropriate, and blindfolded conditions. Subjects made fewer errors in identifying solutions that were colored appropriately (e.g., red-cherry) than in either the blindfolded condition, where there were no color cues, or the inappropriate color condition (e.g., red-lemon). Identification accuracy was greatest for typical odor-color combinations (e.g., red-cherry) compared with appropriate but nontypical odor-color combinations (e.g., red-watermelon). Response latencies were fastest for odors in the appropriately colored solutions. Subjects also rated appropriate color-odor combinations as most pleasant. However, this effect is probably due to the increase in identification accuracy of the appropriately colored solutions. In all three conditions, correctly identified odors were liked more than odors that were not correctly identified. Thus, color is an important perceptual variable in odor identification because it biases subjects toward a color category that facilitates identification if the color is "correct". This ability to identify an odor in turn influences the affective response to the odor. Influence of color on odor identification and liking ratings. Zellner DA, Bartoli AM, Eckard R., Am J Psychol. 1991, 104:547-61.

I hope I'm not coloring anyone's ideas about just how important, and potentially influencial, color can be?

Monday, April 26, 2004

Is Wine Tasting Perceptual Illusion?
(Jeez, we haven't been given the second S, and he's already coming up with this stuff!) Sorry!! But.....

Take 54 undergraduates from the Faculty of Oenology of the University of Bordeaux give them a white wine W (AOC Bordeaux 1996) containing semillion and sauvignon grapes and a red wine R (AOC Bordeaux 1996) containing cabernet sauvignon, also give them a list of odor descriptors and ask them to pick which descriptor is most intensely presented in each wine. Allow them to provide their own odor descriptors as well. One week later invite them back and give them the list they personally determined that described the wines (i.e. their individual list of chosen descriptors for the two wines) and ask them to apply those descriptors to two glasses of wine, wine W from the previous week and wine WR which is wine W colored red with purified grape anthocyanins (previously determined not to provide any odor to wine W).

What do you get? Well the number of terms used to describe wine W over the two tasting sessions is very similar. But in the second tasting for wine WR the subjects use many more odor descriptors of red wine than for white wine (about 3 to 1), even though the only difference to wine W is an odorless red color! What is also interesting is that in choosing odor descriptors in the first test they picked words represented by red or dark objects to describe wine R and yellow or clear objects to describe wine W.

OK, no big deal these are kids, albeit the future of the European wine industry. We all know what we are tasting, don’t we? Our tasting descriptors aren’t influenced by color, are they? Well the stimulus for this little test was an analysis done of the words used to describe red and white wine from 4 different sources; 3000 tasting comments by Jaques Dupont in La letter de Gault & Milan, a random selection of 3000 tasting comments from 32,000 in Guide Hachette du vin (a guidebook by a small group of professional tasters), 7000 comments from the Wine Advocate (Yes, Mr Robert Parker, Jr. himself), and 2000 tasting comments from a French winemaker. The most common characteristic was the use of odor descriptors for red or dark colors for red wine and yellow or clear descriptors for white wine.

(Morrot G, Brochet F, Dubourdieu D, The Color of Odors, Brain and Language 79 (2001) 309-320.)

Now, of course, its quite possible that the ODORS in red wine are best described by terms describing red or dark colors. After all who would argue with Mr P’s nose when it comes to wine and especially from Bordeaux? Well there are these 54 students at the Faculty of Oenology of the University of Bordeaux…………!!

Thursday, April 15, 2004

Seeing Red
The post for today is not the second of our 5 s’es, but rather a comment on a book I have just started to read. It’s The Accidental Connoisseur by Lawrence Osborne. I’m only through the first chapter, Introduction: A Matter of Taste, and I’m ready to put it aside. Why? Well on page 9 the author states “the human tongue doesn’t vary from individual to individual; its anatomical structures are constant.” Really! I guess Mr. Osborne needs to read the extensive literature on human perceptions of taste and odor in wine. As long ago as 1993 Linda Bartoshuk of the Department of Surgery (Otolaryngology) of Yale University School of Medicine, New Haven, CT, wrote “Genetic variation in taste ability occurs across and within species. For example, about 25% of humans are relatively unresponsive to a variety of sweet and bitter compounds (non-tasters) while another 25% are unusually responsive (supertasters). Supertasters have about four times as many taste buds as non-tasters and have smaller and more densely packed fungiform papillae.” (Genetic and pathological taste variation: what can we learn from animal models and human disease? Bartoshuk LM., Ciba Found Symp. 1993;179:251-67.) More information can be found on Tim Jacob’s site. Perhaps even more interesting is Dr Bartoshuk’s criticism of the Tongue Map in the same article; “The study of patients with taste disorders (i.e. 'experiments of nature') suggests that the old tongue maps (e.g. sweet on the tip, bitter on the back) that often appear in textbooks are wrong. If they were correct, severing the taste nerves that innervate the front of the tongue would result in a loss of the ability to taste sweet, etc. This does not occur.” Richard Gawel has an interesting discussion of this.

I'm hoping that Mr Osborne's search for an understanding of taste turns out to be better than his ability to do literature searches.


Tuesday, April 13, 2004

'O' well, so much for the Stem
I go to all that trouble of describing how to hold a wine glass using the stem. And what happens? Reidel comes out with a stemless wine glass. Its called the 'O' and its an exact copy of the Reidel Vinum bowl shape, minus the stem. That means you can get the tall Cabernet/Merlot, or the shorter, squatter Pinot/Nebbiolo, or the tiny Chardonnay/Viognier. And once you have those you might as well get the the squat and really fat Burgundy/Montrachet, the much narrower Zin/Riesling/Sauvignon blanc, and the tall and tight Syrah/Shiraz. These glasses are being marketed as ideal for drinkling everyday wines, and even non wine beverages. But why stemless? Well the argument is that they take up less cabinet space and fit more easily into the dishwasher. The second point is probably true, although its not necessarily a good thing to wash wine glasses in detergent, especially if it has an sort of odor. A good wash in hot water and a thorough drying with a lint-free cloth is all that is necessary. As to a stemless glass saving cabinet space! Not unless you stack them and the 'O' does not look like it will take being piled one upon the other.

Nice try Maximilian. That's Maximilian Riedel, an 11th generation Reidel, for whom the 'O' represents his first glass series.

Monday, March 15, 2004

How to Hold Your Wine
Wonders will never cease! This blog has had 3 hits in the last week, one via a Google search asking “how to hold a wine glass”. So I guess I should answer the question posed at the end of my last, and long ago, post.

There are three principle parts to a wine glass. The bowl, into which the wine is poured. The foot which allows you to sit the glass on a flat surface, like the top of a table. And the stem which is the thin vertical piece between the bowl and the foot (or base). So, is the Reidel lady holding her glass correctly? Well she, or at least the person who posed her, thinks it is correct. So if you want to look like you know your way around a wine glass, or you just like being pretentious, then go ahead and hold your glass by the foot (or base). The rest of us, who know that holding anything by the foot is not a recipe for success, will use the stem. Why? Well two main reasons. First it is much easier to tilt the glass so that you can see the color of the wine at its edge. Second, it is easier to swirl the wine in the glass to release aroma and bouquet. Holding the glass by the foot also let’s you look at the color and swirl. However most of the effort in holding a glass in this manner comes from the thumb. And while an opposable thumb is one of our greatest attributes, its not really suited to holding a wine glass in this way; you are much more likely to spill wine and if you hold the glass for any length of time you’ll end up with a sore thumb! Holding the glass by the bowl is a no, no! You can’t see the color of the wine well, and its difficult to swirl the wine. Another point against holding the bowl is that the warmth of your hand may heat the wine. I write may because I’m not really sure that this does happen. I guess if you cling to your glass and don’t drink from it maybe the wine will warm, but I’ve never seen any hard numbers on this. I think the reasoning behind bowl holding increasing the temperature of wine is that cognac balloons have no stem because part of the joy in drinking a good cognac is to warm it so that the volatiles are released for you to smell. With no stem you have to hold the bowl, or you could hold the foot; now you are really showing all your skill - just don't do it in public. Trouble with that argument is that the volatile content of cognac is far greater than any wine, and so a small amount of heating works wonders. Hmmm, it might be time to buy a thermometer and test just how much temperature increase you can get from bowl holding!

No, don’t hold a wine glass by the foot, or the bowl. Use the stem. Here’s what to do to get a glass positioned in your hand so that you are holding it by the stem.

Hold your right hand vertically, fingers out-stretched, thumb pointing up; just like you are about to shake someone’s hand. Curl the 4th and 5th fingers into your palm; for convenience we are counting the thumb as the 1st finger. Pick up a glass with your other hand and place the foot between the 3rd and 4th fingers so that its resting on top of your 4th finger. Now wrap your 2nd and 3rd fingers around the stem. If this is done correctly you don’t even need to use your thumb to hold the glass. However, to get the best stability rest your thumb on the foot and the stem of the glass.

Of course you don’t and shouldn’t need to use two hands to pick up a wine glass. But if you use the above description you will know what the correct positioning should be. Then you can pick up the glass by simply using your thumb, forefinger and index finger to grasp the stem, lift and slide the last two fingers under the foot. And there you are, ready to go from touch to sight in your search for the perfect taste of wine.

Wednesday, February 18, 2004

Stem
Do you have your glass? You do! Good, but might I ask what type of glass it is? If its a carefully selected, wine matched Reidel glass then I guess you really have been boning up on this stuff. But hopefully you didn't spend too much, and you aren't too clumsy!

What glass do I use, you ask? Well for a number of years I have been using the ISO tasting glass. I first started to use the ISO because it handles well and takes a reasonable amount of wine, especially for tasting, and it seemed to work well for most wines. Oh, and compared to Reidel an ISO is cheap. And in comparative testing the ISO does pretty well against wine specific Reidels.

Of course Reidel is correct when they state that a wine glass should be:

colorless
transparent
unadorned
thin-walled
with a cut and polished lip
egg-shaped
stemmed
and, made of lead crystal

But what's the bit about the stem? Well that's were you hold it! So my question to you is does the attractive lady on the Reidel home page know how to hold a wine glass?

Friday, February 06, 2004

Where were we?
Ah, yes. Learning to taste. Classes and books are essential, but nothing beats drinking wine! Correct? No, not entirely. There is more to tasting than simply pouring wine down your throat. We will cover a lot of information on tasting as this blog matures with age, but for now the simplest approach to tasting is to use the 5 s’es. And they are?

Stem
Sight
Sniff
Slurp – there has got to be a better word for it!
And Swallow.

And where did you learn this? Funny that you should ask. It was revealed to me on a slow boat going up a river. No, that’s not entirely correct I’ve known about the 5s’es for some time, I’ve just never thought of them as the 5 s’es. That’s not very clear is it? ……….Moving on. The 5s’es were used to demonstrate wine tasting while we were on a recent river/vineyard tour of the Swan Valley in Western Australia. It seemed to be a very simple approach to something that I can make extremely complicated; which will be made evident in the following days, weeks and months.

In the next posts we will go through all five, in detail! So come prepared with your nose and mouth, a glass and an open bottle of wine.

Monday, February 02, 2004

Tasting
“Learning” how to taste wine takes many different forms. My first real experiences were in a series of classes run by Andrew Pirie in the 1970s. Very interesting stuff because much of the material was from his PhD studies which pointed the way to Tasmania and Pipers Brook as a region for cool climate wines. One of the best Chardonnays I’ve tasted came from Pipers Brook. The vintage I’ve forgotten but the place was Hobart at the end of 1986 or 1987. And the taste was……well it is just a memory now. But Pirie’s lectures and tasting provided me with the realization that wine was more than liquid in a glass. There was stuff to learn!

And where do you learn. At the feet of the master, of course! And if that’s not possible then you read his book. Which book? This book. Buy yourself a copy. Buy a friend a copy. Include a little note that says:

The ancient Greeks thought wine the nectar of the Gods
Pity the Gods
They never had the pearls of wisdom in this little book

Sunday, December 28, 2003

Pangkarra
A little side note before we advance into the 5 s's! In the inaugural NSW Wine Press Club Lecture Jeffery Grosset discussed the word "pangkarra" as the Australian equivalent of the French "terroir". Pangkarra is an Australian aboriginal word used by the Kaurna (usually pronounced "Garner" or "Gowna") people who once lived near the Adelaide Plains of South Australia.

Neither pangkarra and terroir has an English equivalent. Terrroir essentially encompasses "the total natural environment of any viticultural site" (Janis Robinson's Oxford Companion to Wine). The emphasis however seems to be on the soil. Pangkarra is derived from pangka, which means a lake or a lagoon "but its meaning also incorporates the concept of a vast area including a vast expanse of water such as the ocean. The latter part of the word arra, is a postfix denoting the sense of being alongside." (See The Kauna). Pangkarra therefore indicates an area of land at least some of which is alongside a body of water that was used by a particular family group. In a recent interview on Radio National Linguist Jane Simpson noted that pangkarra was defined in 1840 as "a district or tract of country belonging to an individual, which he inherits from his father".

Its a little hard to justify Grosset's use of the word given that it may simply mean a plot of land owed by an individual family group. Where is the relationship to the "natural environment"? Of course the meanings that are given above for pangkarra may not do justice to the meaning in Aboriginal language. The concept may mean far more than the land, it may also refer to what is on and under the land i.e. food, and certainly water. But I'm willing to bet that even through the aborigines were great managers of their land they didn't grow grapes, nor did they make wine. One may be forgiven then for being just a little "terroirfied" of winemakers venturing into linguistics!

Wednesday, December 24, 2003

Ah, Aroma!
Wines have aroma. Which means you can smell flavors when you take a good sniff. This means you stick your nose deep into the glass. No, don't wave your nostrils over the top of the glass, all you'll smell is whatever is in the air around you; which shouldn't be perfume, cigarette smoke, body odor, etc. Stick it in there! See, aroma!

But what aromas? Well if you read the tasting notes in every wine magazine and on-line wine site you'll see many and varied descriptions of what can be smelled in wine. Some people seem to be able to smell just about everything in a single wine. Others, like me, smell something but often an accurate description eludes us. Why? Well it is probably because we don't have a good library of matched flavor memories and descriptors. We know we've smelled that odor before but just can't put a description to it. Is it asparagus, wet hay, grass cuttings, or grandma?

Then along comes the aroma wheel. No it won't improve your ability to smell all the flavors that the wine magazine lists for its latest fad wine. But it will allow you to standardize your descriptions of wine. You'll use fewer key words, but they will mean more and that's a good thing if you want to be consistent in your wine tasting. For example, "Floral is a general but analytical descriptive term, whereas "fragrant", "elegant" or "harmonious" are either imprecise and vague (such as fragrant) or hedonic and judgmental." Of course, if you're a hedonist and like to come up with descriptions like, "Hmm, a simple yet fragrant wine, somewhat reminiscent of the runoff from an Afghan camel driver's loin cloth", then an aroma wheel is not for you.

Along with how to use the aroma wheel, AC Noble (of UC Davis) provides information on how to generate sets of aroma standards for white, red and sparkling wines. The standards can then be used to describe the aromas in different wines. Practice makes perfect in wine tasting. Or you could just buy pocket sized aroma cards. Just imagine on your next visit to wine country you could pull out your aroma cards, scratch and sniff and tell the wine makers just what their wines smell like! You'll look like a real pro!

Next, Stem, sight, smell, sip, swallow. Or I'll just describe how I taste wine. Its really simple and fun!

Tuesday, December 23, 2003

Judging on a Curve?
Hmmm, so when wine is judged there is an "expectation of three to five per cent winning gold, around seven to ten per cent winning silver, and 33 per cent or thereabouts winning bronze" (James Halliday). Really? So wines from a great year, or an outstanding region, vineyard or winemaker have to conform to this arbitrary grouping? Apart from seeming fixed (and certainly biased) this type of expectation only levels the playing field in an arena where the field is anything but level. If a wine is worthy of a medal it should receive it. And if it falls below that level it certainly should not be raised above realistic expectations. After all life is too short to waste it by drinking inferior wine, especially when there are so many great wines available. At least 3% of the total, right?