A bunch of Chenin Blanc infected with acid rot
The vast majority of the 2014 grapes are very healthy with almost no sign of rot. However, just occasionally, there is a bunch affected with acid rot. This particular bunch (Chenin Blanc) had a very powerful smell – perhaps stench is better – of vinegar. Certainly not something a producer wants to get through to their fermenting vat. Picking by hand, of course, means that there is a better chance that acid rot bunches will be identified and rejected in time. Less easy if you are machine harvesting, although perhaps possible with the latest hi-performance machines.
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