I got a pleasant surprise from the IRS (ironic, I know). They say that I miscalculated my refund and I actually received 2 1/2 times what I expected. I decided to spend part of the windfall on some frozen wine must. I ordered a 5.25 gl pail of frozen 2008 Windsor Oaks Sauvignon Blanc from midwestsupplies.com. The grapes were hand-picked, crushed and destemmed on 22 Aug 08. The published specs are 23.9deg Brix, 3.07 pH, 0.60 TA.
It arrived on Wednesday, still half-frozen. I was surprised at the color. It was the color of honey or cream soda. I’d expected it to be much lighter. I sat it in my kitchen until late that evening, when I mistakenly believed that it was fully thawed. I put it in the fridge, planning on taking it out Thursday night. Well, Thursday night I still had ice. I tested it at 3.60 pH, .5 TA and 4 ppm SO2. I put it back in the fridge until Friday morning. I left it out Friday to thaw and come to room temp.
Friday night it was at 60deg F. I tested the Brix with my hydrometer, and it registered 20.29deg. I added 29.9g of tartaric acid to bring the TA up to .65, and .2g meta to bring the SO2 up to 10 ppm. The pH ended up 3.27. I’m planning on putting part of the must through malolactic fermentation, so I have to keep the SO2 low. The pH might be an issue, but I figure it will increase slightly during fermentation. I transferred 2gl to a carboy to ferment now, and the rest to freezer containers to refreeze.
I added 2t yeast nutrient to the must while I rehydrated the yeast. I went with Lalvin D-47 yeast, per the recommendation of the guy at the local winemaking supply shop. I rehydrated the yeast per the manufacturers instructions before added it to the must. I topped the carboy with some cheesecloth and a rubber band. I’m now just waiting for fermentation to begin.
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