Pretty interesting that our perceived conceptions about various house styles
http://www.thevintageportsite.com/ask_browse.phpI asked
"We have a friendly discussion amongst fellow port lovers and are wondering what are the residual sugars of the SFE line up for 2007 Vintage Ports. Would it be possible to divulge that information?"
"A:
Hi Jeff, The exact laboratory analysis of our wines is proprietary information which is shared only with the IVDP, so we cannot quote the residual sugar numbers for you. What we can do, however, is direct you to the Baumé readings which in recent years have generally been published as part of the release notes for our top brands. On that basis, the numbers for the 2007 Vintage Ports are as follows:
Dow's Baumé 3.4
Graham's Baumé 4.1
Quinta do Vesuvio Baumé 3.8
Warre's Baumé 3.8
The Baumé scale is a way of measuring the density or specific gravity of grape must as compared to a standard of distilled water being equal to zero, and as the must "weight" is driven by the amount of dissolved sugars (which constitute typically 90% of dissolved solids), this reading will give you an indication of relative sweetness.
These numbers bear out the stylistic differences between our wines, namely that Graham's is typically the richest and sweetest of our Port brands, and Dow's the driest, with Warre's and Vesuvio falling between at the sweeter end of the spectrum."
And on our discussion of perceived sweetness
"Bear in mind that your perception of the sweetness or dryness of a wine will be influenced by the balance of sugars versus tannins versus acidity. You can easily experience a wine as sweeter when technically, in the laboratory, it may not be, because perhaps it is less tannic or less acidic than another wine, so the sweetness makes the overwhelming impression. There are two useful discussions of this in Wikipedia articles on Ripeness in Viticulture (scroll down to the section "Evaluating Ripeness") and Sweetness of Wine. Alternatively, consult any winemaking reference or textbook."