Hi Guys - My Cab Franc was down to zero brix last night. I’ve had it in my garage at 78-86 degrees. Smells and looks great. PH is at 3.65. I did add TA to bring the PH down about .2
I had 2 batches of barbera 1) fermented in garage at 78-86 degrees and 2) fermented in basement room at 74-78...
here’s how I calc the TA.
1. Calibrate PH meter
2. Draw 10ML juice to tube/beaker
3. Add in .1n sodium hydroxide until PH =8.20
4. TA calc is ML of sodium hydroxide divide by ML of juice X .75..
for example, if it took 15ml sodium hydroxide to get to 8.20, the TA =15/10x.75 =1.125% TA
Hi Crushday, probably not at least. We came towards the end, might have just missed you. and only got 100lbs, couple of buckets. I’ve been dealing with my home 90 barbera vines, 1st year they had grapes. 250lbs. Doing it all by hand..
My barbera is kinda the opposite on the PH. I had 26 brix...
Norcal, just wanted to confirm. No more Sulfites until after MLF complete? I added 35ppm at crush, wasn’t sure if that dissipates through ferm and if I should top off a little or leave because of the MLB. I know with my low ph, don’t need as much so2.
I did the chromo test on my acidic barbera..one early fermentation (8/18 crush) and the other which I just pressed. (8/11 crush). I added ch16 to the 8/11 during ferm. Then I read ch16 not good with a low ph so I picked up VP41 and added into both batches.
PH has risen from 2.95 at crush to...
Hi - I’m still thinking about a small batch of port with my barbera I just started primary ferm on.
I talked to a wine maker who makes a barbera desert/port wine. He says he ferments the barbera dry then adds concentrate and grape spirits in the back-end and ages 18 mos in oak.
Here’s my rough...
Thanks.. yep, It’s my barbera. PH is still on the low side 3.24 and high acid. I added a little potassium carbonate to help. I’m adding in VP41 for ML and cold stabilize later hopefully acids will come down. I’m about done with primary after 7 days. 2 brix, gravity 1.02 so the yeast got through...
I just wanted to check if I’m doing my TA test/calcs correctly with my PH meter.
1. I calibrated my PH meter
2. I added 5 ML of wine must
3. I added .1N sodium hydroxide until 8.2Ph..added 8ML to get to 8.2PH.
8ML .1N Sodium hydroxide / 5ML juice X .75 = TA of 1.2% or 12.??
Yeah. I already have it. Rookie mistake, that’s what my wine/beer making store recommended. I can’t believe the stupid directions on the WPL. Add to must at 5 brix. however must can’t have over 10ppm so2.
I do have the WPL, think I’ll add the WPL after pressing for an extra kick.