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Howie Hart
The Hart of Buffalo
6389
Thu Mar 23, 2006 4:13 pm
Niagara Falls, NY
It may not be either bacterial or low SO2. Rotten egg smell is an indication of H2S (hydrogen sulfide). The main cause of this is reduction, the opposite of oxidation. This happens in wine when the yeast does not have enough nitrogen. Certain strains of yeast, mostly newly developed strains, require high amounts of nitrogen, which must be provided by the winemaker in the form of a "yeast nutrient", added at various stages of fermentation. If the H2S problem is not addressed quickly, the H2S will polymerize into mercaptans, which are much more difficult to deal with. Mercaptans are very aromatic and are added to natural gas and propane so people can smell the gas, which is otherwise odorless. Copper is used to treat such conditions. If you still have some of the wine, try pouring it over a penny (or whatever copper coin is in Brazil) and see if the aromas change for the better.Oswaldo Costa wrote:...Marcia disagrees with the dog poop characterization, thinking it too strong. She sees it more as rotten eggs...
...In short, a bust. Must be a victim of low SO2, the "bacteriological time bomb" thing. So at this point I am wondering if a conventional seal (assuming these wax things are more airtight than metal capsules) would have allowed some of the reduction (if it is that) to blow off. Mystery.
Howie Hart
The Hart of Buffalo
6389
Thu Mar 23, 2006 4:13 pm
Niagara Falls, NY
Victorwine wrote:What year is this Lincoln cent?
http://www.treas.gov/education/fact-she ... cent.shtml
Salute
Rahsaan wrote:Did anyone at the shop have views on how it has aged? Did they wax enthusiastically about how the bottles they tasted were grand and glorious? (I've found that all too often while the bottle I taste at home bear no resemblance to those comments).
Oswaldo Costa wrote:But the 2002 Robinot Vouvray was splendid, as was the 1999 Overnoy (that didn't have to cross the Atlantic). The remaining purchases were more recent vintages, so should hopefully be OK.
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