• November 12, 2018 at 6:54 am #1785
    Dave Burt
    Keymaster

    These grapes were picked on November 7 and the crush was on November 10.

    Here are my chemistry results based on clear juice drawn from near the surface of the settling carboy after 24 hrs of settling:
    Brix: 22.3
    pH: 3.26
    TA: 8.1
    YAN: 146

    These numbers seem very good and so I am not planning on any adjustments. I suspect back-sweetening will be needed to balance the acid in the finished wine. This year I think I will retain some of the high Brix liquid from extraction of the frozen sludge for this purpose.

    -Dave

  • November 14, 2018 at 11:40 pm #1788
    Peter Huyghebaert
    Participant

    Added 6g pectin to my 125lbs, cold soaked for 24 hours and pressed the “hell” out of mine. Following numbers were from settled juice @25C. Yield of clear juice was 27 litres, with 8 litres of sludge frozen to be Lukynized tomorrow and added to my must.
    Should get about 4 litres of “balanced” juice, giving a total of 31 litres out of 125 lbs – pretty good yield from those grapes.

    Brix = 23, SG=1.092

    pH = 3.40

    TA = 6.5

  • November 23, 2018 at 11:59 pm #1793
    Don Graham
    Participant

    My #s
    I whole cluster pressed on the day of delivery and froze the juice
    My sample came from the thawed and cleared juice
    Brix 22.4
    pH 3.15
    T A 8.0
    YAN 126
    Very nice

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