I drove to St. Louis for these 3 lugs of old vine Zinfandel. It was nice to meet one old friend and one new friend at St. Louis Wine and Beermaking. Jerry, with whom I have corresponded for years but had never met, gave me his leftover KMS. Stephen helped me with the dosing. There we crushed the 3 lugs, dosed the KMS at 50ppm, and I trucked the grapes and the Sauvignon Blanc juice bucket back home.
The numbers were decent - TA 0.58%, pH 3.45, and 22.5 Brix - good enough that no preferment adjustments were needed. I added 4.5t pectic enzyme and 1.2g Lallzyme EX, each divided between the 3 buckets, and stacked them in the fridge for a 2 day cold soak.
After warming, I added 8g Booster Rouge, 8g Opti Red, then pitched RC 212 rehydrated with GoFerm. To get the temp up, like last year, I added a nice comforter.
Over the next 3 days I used Fermaid K, 2t step fed, with 12g bentonite. Tm was 26.0C. It fermented steadily down to 1.004 on day 7. With vacation looming, I pressed.
I have 7-7.5 gallons (not sure if that is 6 or 6.5g carboy), but there is at least 1/2 gallon of gross lees. I expect it to be under 1.000 by tomorrow, at which time I'll rack off the gross lees and get the MLF started with VP41 on oak cubes.
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