Due to sloth and some personal issues over the last few months I didn’t get around to racking the Syrah until two days ago. It was keeping me awake at nights, so I sucked it up and did it. It went well with only a little spillage and ended up with a barrel plus a half [...]
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Here are the results of the latest lab test for the 2008 Zinfandel: 2007 Zin Post ML Malic Acid 83 mg/100mL pH 4.16 Titratable Acidity 0.605 g/100mL Free SO2 None detected Total SO2 3 mg/L I fear ML is stuck as it needs to get down to 15-30 mg/100ml. I am going to try adding some fresh cultures. Also the pH is too [...] AC24581 08 ZINJUICE pH 3.84 Titratable Acidity 0.555 g/100mL We will need to add acid at some point, probably Tartaric. I am researching how much and when [...] A day after pitching the yeast I check the temp and gravity. There is activity already, temperature was up 3ºF even though it was a cold night (46ºF outside). The weird thing is that I am getting a higher reading of 26ºB as compared to the the two other readings both coming out at 24.5ºB. I [...] I just got the rep-bottling lab results on the 2006 Merlot: Free SO2: 17 mg/L I added another 2g to bring it up to a target of 40 mg/L Oh and I racked it into the beer keg, ready [...] 2006 PMR Cabernet
pH 3.79
Titratable Acidity 0.695 g/100mL Free SO2 0
Total SO2 0
Glucose + Fructose 163 mg/100mL Malic Acid 10 mg/100mL Volatile Acidity 0.106 g/100mL
2006 “Gardner’s Block” Cabernet
pH 3.84
Titratable Acidity 0.624 g/100mL Free SO2 0
Total SO2
I re-calibrated the pH meter and did my best with the titratable acid test. I might send the G&M Syrah in to Vinquiry to double check the pH. The Syrah is so much darker than the other two. - Cabernet, Syrah, Merlot “Gardner’s Block” Merlot “Gardner’s Block” Cabernet 9/21 Here are the real results from Vinquiry: pH – 3.70 – Autotitrator Now I just need to figure out what this all means! I am most surprised at the complete lack of SO2. Gotta fix that soon. I don’t know what amount of Malic acid defines a complete ML fermentation. Watch this space for more info. I pulled off 300 ml to send to Vinquiry today. After racking I took the left-overs and ran my own lab tests on it. Here are my numbers, they seem a little weird. TA = .65% The acid should be higher considering the pH and SO2 seems high as well. Now we get [...] |
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