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Message: <blockquote data-quote="Johnd" data-source="post: 649257" data-attributes="member: 33054">Just narrowing down the variables (since both wines were handled the same) would lead me to the pH issue of the Malbec, which should have adjusted upwards prefermentation, yielding a pH in the range which would allow both AF and MLF to progress without stress. It's better to make these adjustments in the must and allow the acidity to be integrated into the wine during its creation. Length of time on the gross lees is a little long as well. That said, all is not lost. With the reduless and the racking protocol it requires, you should be able to rid the wine of the stinkies, get your pH up a bit, and create a more favorable environment for your MLB. I believe that when grapes are shipped a distance, the protective SO2 that is used can be detrimental to MLF, and don't add any more when I get my must, FWIW........</blockquote>

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