How mindful are you in this management of. CO2 in relation to aroma... ?

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John D. Zuccarino
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Joined: February 8th, 2009, 12:43 pm
Location: Finger Lakes Seneca Lake NYS

How mindful are you in this management of. CO2 in relation to aroma... ?

#1 Post by John D. Zuccarino » February 13th, 2014, 9:52 am

Comments on the biggest misconception that CO2 is acidity when we know its not acidity unless its carboxylated ... How mindful are you in this management of. CO2 in relation to aroma... ?

Finished your book and enjoyed your perspectives ...

Cheers !!!
"if I cannot move heaven I will raise hell"

Virgil's Aeneid...Hell must have frozen over, somehow I am a Donor


John D. Zuccarino

Silver Springs Winery L.L.C.


AKA Don Giovanni Wines tm.

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Clark Smith
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Joined: February 6th, 2013, 2:09 pm
Location: Santa Rosa, CA

How mindful are you in this management of. CO2 in relation to aroma... ?

#2 Post by Clark Smith » February 13th, 2014, 10:21 am

John D. Zuccarino wrote:Comments on the biggest misconception that CO2 is acidity when we know its not acidity unless its carboxylated ... How mindful are you in this management of. CO2 in relation to aroma... ?
Actually, CO2 is an acid. It combines with H2O to form H2CO3 => 2H+ + CO3--. But the pKa of the first dissociation is 6.4, very high, so it doesn’t contribute to pH at all. The definition of TA excludes acidity from CO2, which is why we use boiling water to drive it off, but it does contribute to acid taste and salivation rate; in champagnes it add 2 gm/L to the TA. I like to keep it low in reds to minimize salivary protein which causes coarseness. I like a subliminal amount (say 750 ppm) in my SB and Pinot Grigio to add freshness to the nose.
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John D. Zuccarino
Posts: 1002
Joined: February 8th, 2009, 12:43 pm
Location: Finger Lakes Seneca Lake NYS

How mindful are you in this management of. CO2 in relation to aroma... ?

#3 Post by John D. Zuccarino » February 13th, 2014, 2:17 pm

Thank you for the clarification ... Cheers!!'
"if I cannot move heaven I will raise hell"

Virgil's Aeneid...Hell must have frozen over, somehow I am a Donor


John D. Zuccarino

Silver Springs Winery L.L.C.


AKA Don Giovanni Wines tm.

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