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In 2013, I got taste and aroma for around 1100 wines. I used the data to create flavor profiles and predict the price based on the chemical composition. In gene

by sin7 9y ago

In 2013, I got taste and aroma for around 1100 wines. I used the data to create flavor profiles and predict the price based on the chemical composition. In general, more expensive wines are more complex and the predicted price matches the actual price quite well. This breaks down on the extremes. Boxed wines such as Franzia and Vella are under priced. Not by much, but their juice is closer to 4-5 dollar bottled wines. At the time of the calculation a bottle of Franzia was around 2 dollars. So, it's a pretty good deal. On the other side, most new world wines over 35 dollars are over priced. There's nothing chemically different to the the wines just below 35 dollars. There were a few wines in the middle that were way off. I remember a Clos Du Bois was under priced by 7 dollars, but most of them were in the right range. The biggest offenders were wines that built their reputation in a well known appellation and moved a level higher. It's very common for wines to start in Sonoma Coast or Carneros and end up with a California appellation.

cityhall 9y ago
Did you try the underpriced ones, and were they good? A particular wine can be complex but have some specific quality that makes it unappealing. I'd be surprised if complexity is the main variable between different vintages of the same wine that have very different prices.
- sin7 9y ago
  I didn't try any. I drink very little wine. I did show the list around and no one was surprised. It wasn't Kendall-Jackson that was under priced. It was smaller wineries that had been getting solid reviews. There must have been some surprises, but I knew very little of wine back then. I also knew very little about machine learning, R or anything else. I knew enough to use Random Forests, R for graphing and the opinion of others to judge the results. I tried finding the file with the list of all the wines and the predicted prices. I didn't even know enough to name the file correctly. I think the large companies are very consistent with their product. They have many sources for their juice and because of that their product will be more average. The small companies can have years where they do everything right and create a great product, but it's not like they can just change their price to reflect the better quality.

by sin7 9y ago

cityhall 9y ago

Did you try the underpriced ones, and were they good? A particular wine can be complex but have some specific quality that makes it unappealing. I'd be surprised if complexity is the main variable between different vintages of the same wine that have very different prices.

sin7 9y ago
I didn't try any. I drink very little wine. I did show the list around and no one was surprised. It wasn't Kendall-Jackson that was under priced. It was smaller wineries that had been getting solid reviews. There must have been some surprises, but I knew very little of wine back then. I also knew very little about machine learning, R or anything else. I knew enough to use Random Forests, R for graphing and the opinion of others to judge the results. I tried finding the file with the list of all the wines and the predicted prices. I didn't even know enough to name the file correctly. I think the large companies are very consistent with their product. They have many sources for their juice and because of that their product will be more average. The small companies can have years where they do everything right and create a great product, but it's not like they can just change their price to reflect the better quality.