Comments on my Zin and Merlot numbers

I have 4 buckets of merlot with 4.5gal in them All crushed from 6 cases of grapes. I only measured 2 of the buckets. I have 2 12 gals and 1 40gal of Zinfandel

Yesterday I added meta, nutrient and pectin enzyme (for color extraction I stirred the musts up this morning, and strained the juice for my readings

Bucket 1 Merlot 4.5gal pH 3.90 SG 1.140 (I checked this twice) TA .765

Bucket 2 Merlot 4.5gal pH 3.87 SG .900 TA .68

Tank 1 Zin 12gal pH 3.77 SG .900 TA .675

Tank 2 Zin 40gal pH 3.75 SG .850 TA .665

Reply to
Fishhead
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Do you mean 1.090?

Reply to
Joe Sallustio

Yes I did!!!!

Reply to
Fishhead

Time's a wastin'! You want to get that in there ASAP.

Tom S

Reply to
Tom S

Ok, but use tartaric only if all you want to do is swing pH. Now that they have started fermenting you may want to remeasure; my acids always seem to rise a bit post fermentation. just boil the juice sample for a few seconds prior to reading to drive off the CO2. The right way to do it is to pull a 50 ml sample, heat to 180-212 F for several seconds; cool and add distilled water to make up any volume lost. CO2 affects both pH and TA.

My central valley Merlot from grapes was high too, 1.107 and a TA of

5.2. I added a few teaspoons of tartaric to 6 gallons, it's a little overly tart now but pH near 4 seems like it need attention.

Joe

Reply to
Joe Sallustio

My wines are almost dry... I should have pressed on Wed... but now they will wait till Sat. I pulled my samples, boiled them for a few seconds then chilled them to room temp.

Merlot pH 3.68 SG 1.010 TA .73

Z> I have 4 buckets of merlot with 4.5gal in them All crushed from 6 cases

Reply to
Fishhead

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