Forum Replies Created
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In reply to: 2023 Cabernet Sauvignon
October 10, 2023 at 4:08 pm #3805Chris GebhardParticipant225lbs Added 70-80ppm sulfite after crush. added CP before transfer to fridge (3C). FT rouge the next morning. Cold soaked for 3 days. No VA smell. Adjusted the acid with tartaric acid. Will be adding yeast this evening.
Brix 23
pH 3.82
TA 5.9In reply to: 2022 Pinot Noir
November 2, 2022 at 9:51 pm #3011Chris GebhardParticipantBrix 24.5
pH 4.08
TA 4
Added 2.5g/litre of tartaric acid based on estimate of 32litres of juice from 125lbs. pH dropped to 3.58.
Adjusted Brix to 23.5
Started fermentation after 4 days of cold soak at 3C.
No YAN figures to work with. Assume around 100, will add 200ppm nutrients.In reply to: Cab Franc numbers
October 27, 2020 at 7:34 pm #2583Chris GebhardParticipantBrix 23, TA 4.8, pH 3.71. Cold soaking until the weekend. Weather is co-operating,
In reply to: Chemistry Results – 2019 Cabernet Sauvignon
December 26, 2019 at 5:38 pm #2473Chris GebhardParticipantI finally picked up the must from the freezer facilty and started fermentation. The thing that I found is difference between my Brix reading and the above two posts. My Brix showed 22.5. pH was 3.5. I wonder what others had.
In reply to: YAN and chemistry – Syrah 2018
December 1, 2018 at 6:43 am #1797Chris GebhardParticipantAhh, thanks Ian. I was concerned as why my numbers were so far apart from Peter’s. And I was wondering about all that pressing! Looks like your and mine acid readings are very close.
In reply to: YAN and chemistry – Syrah 2018
December 1, 2018 at 12:05 am #1795Chris GebhardParticipantTests are after 4 weeks in the freezer and thawing for 2 days.
Brix 23
pH 3.58
TA 4.8I tested the TA twice getting the same result. Added 0.5g/lt. tartaric acid
In reply to: YAN and chemistry – Cab Sauvignon 2018
November 30, 2018 at 11:52 pm #1794Chris GebhardParticipantTested after a month in the freezer and thawed for 2 days.
Brix 22.5
pH 3.64
TA 5.7In reply to: Chemisty and YAN Posts – 2017 Malbec
November 2, 2017 at 4:43 pm #1086Chris GebhardParticipantCleared sample in fridge for 36 hours. Tested at 21C.
Brix 22
pH 3.66
TA 5.2Will not be making any adjustments.
In reply to: Chemistry and YAN posts – 2017 Cab Franc
October 27, 2017 at 2:20 am #1053Chris GebhardParticipantBrix was 24. Unfortunately I smashed my pH electrode two days ago and have ordered a new one from Germany. My backup electrode read 3.91, but I don’t trust that number and would like to see what others got. Have not yet tested the TA. Will wait for Don Graham’s YAN test results. Must is in soaking at 4C. Good thing that I’m not relying on mother nature as it will be 17C tomorrow.
In reply to: Chemistry and YAN Posts – 2017 Merlot
October 18, 2017 at 11:15 pm #1021Chris GebhardParticipantMy numbers:
Brix 25
pH 3.68
TA 5.4Can’t understand why my TA is so much higher than what’s in the other posts. I calibrated my meter with fresh solution and repeated the test 3 times.
Must is cold soaking at 4C. I added the yeast today but will continue the soak until Saturday.
In reply to: Are you experiencing H2S issues with your 2016 grapes?
October 28, 2016 at 7:57 pm #837Chris GebhardParticipantMy Syrah has developed H2S two days ago, on Day 3 of fermentation. I added Fermaid K on Day 3 and DAP on Day 4. The smell seems to have diminished today (Day 5), but not gone yet. Brix is 10. Will add more nutrients today and aerate. Can B5 still be added at this stage or is it too late?
The strange thing here is that I am fermenting 200lbs of must in two containers. 3/4 of it in my 20 gallon bin and 1/4 in the smaller 10 gallon. The HS2 developed only in the the larger one and the smaller one smells sweet.
In reply to: Chemistry and Balancing on Jeff Crowleys 2016 Syrah
October 28, 2016 at 7:45 pm #836Chris GebhardParticipantDave, I took my pH readings after I brought the 4 pails home. pH of 3.86 is the average from the four pail tested. I checked the pH after 4 days of cold soak and it was 3.81. I tested for the TA four days after the cold soak and some fermentation with indigenous yeasts. The test was done on clear juice after a sample had settled in the fridge overnight.
In reply to: Chemistry and Balancing on Jeff Crowleys 2016 Syrah
October 25, 2016 at 3:09 am #831Chris GebhardParticipantI inoculated my must last night after 4 days of cold soak at 6c as the wild yeasts had really started working and caps formed in the pails. Brix dropped from 25 to 24. I pitched in all the D54 I had on hand, 24g, into 200lbs of must. This morning the yeast was working hard and tonight it’s in full force, so maybe all that yeast was not necessary. Before adding the yeast I brought up the temp to 24, and now, after cap punchdown and a stir, the temp is holding at 22. Ambient temp is 18. My pH read 3.86 and TA 3.6.
In reply to: Chemistry and Balancing on Jeff Crowleys 2016 Syrah
October 22, 2016 at 6:10 am #805Chris GebhardParticipantMy must is refrigerated with an average temp of 6C, and I am still getting a lot of wild fermentation. Brix was 25 when I brought it home and this morning after 40 hours it was still 25, despite the activity.
I had planned to do an 8-10 day cold soak, but will probably pitch in the yeast and ferment in a couple of days.
Chris GebhardParticipantI have an extra portuguese floor corker. The first $20 donation to the Nanaimo Winemakers will take it away!
Chris Gebhard
250-244-1995