Monday, October 4, 2010

Regime for 2010 Primitivo blend: L&S&P

Will refine this as we go, but as of 10/4, here's what we are looking at.
  1. Destem and collect both grapes in a single primary.  (252# Primitivo, 36# P. Syrah).
  2. Add 50 ppm potassium metabisulfate to the must.  If we base this on expected juice, that will be 1.5 g x 20 (gal) = 30 g.  If we do this based on volume of must with skins, we'll add more.
    Test for Brix, acid, temp.  Target acid will be NN.  Adjust acid if necessary.
  3. Prepare yeast, BM45, with Fermaid K and Go-Ferm.
  4. Inoculate must.  No cold soak prior to inoculation.
  5. Monitor and punch down as necessary.  Keep temperature below 85 F.  Add ice-packs or dry ice if necessary.
  6. Unsettled: do we draw off any juice for rose, when, and how much?  One day after active fermentation begins and 1 to 3 gallons?
  7. At 0 Brix test again for acid, and for free S02. 
  8. Inoculate with MLF bugs - DYWM2 Enoferm Beta, 2.5 g - and possibly Opti'Malo Plus 60 g.
  9. Unsettled: do we try for an extended maceration at this point?  How long?  Answer will likely depend on how many days it took us to get to 0 Brix and whether we can muster the troops quickly to press.

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