Topic of the Week 3/5/18 - Masters

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This week: Flaws in Burgundy

What wine flaw received widespread attention during the 1990-2000s in Burgundy? Discuss the techniques winemakers have used since to address the flaw.

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  • Ah, good old premox. Batonnage was increased to promote reductive characters and attempt to ward off oxidation, but one of the major style changes involved "macro-oxygenation", where winemakers deliberately let the unfermented must oxidize and brown to eliminate the volatile elements prone to causing problems. Since the flavonoids most prone to oxidation were in the skins and pips, this part of the press juice was often separated from the free run and allowed to brown overnight before being re-integrated to the free run before fermentation. This was a common practice before the advent of the pneumatic press, which protects the juice and skins from air more than the hydraulic presses. Lafon and Roumier use this technique.

    Another issue may have been too pristine of a racking into barrel; the absence of no primary lees may have deprived the wine of natural anti-oxidants and caused issues later.

    Another school of thought tracks the decrease in sulfur use in Burgundy to a critical point during the 90s and early 2000s, when additions were so low that the SO2 consumed by the bottling process left virtually nothing for the life of the wine.

    In short, no one is quite sure why it happened.

    I couldn't find the great article that talked about micro ox but here's one by Jasper Morris from World of Fine Wine on the issue.

    www.worldoffinewine.com/.../white-burgundy-out-of-the-woods-4717208

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