Is anyone aware of a "laboratory analysis" that can tell what grapes a wine is made from"?
From other reports, I gather there are some markers that enable them to determine variety(ies). US and Italy came to an agreement, there will be no ban on Brunello.
Will appreciate a pointer to the literature.
From what I have read, there is not yet a robust method that discriminates between varieties in the bottle, much less in situations where winemakers cheat by *blending* in varieties that should not be in the mix.
Thus my curiosity about the assertion that the wines could be authenticated using laboratory analysis.
A few years ago a Japanese company (NEC?) announced they had a machine that could analyze and identify something like the 50 most popular varieties, specifically to eliminate fraud. Obviously before developing a machine that can do it, it must be possible to do it in lab. A little Googling should get you some links, or call UC-Davis.
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