2020 Red Blend Second Run

October 2020 – Last year’s second run wine is wildly successful, so I’m (of course) doing it again. Making a second run extends my results by 50% AND the cost per bottle was $0.38!

This year I purchased 288 lbs of Merlot (batches 1 and 2), 144 lbs of Zinfandel (batch 3), and 36 lbs each of Cabernet Sauvignon, Cabernet Franc, Malbec, and Petit Verdot (batch 4). Each batch is 144 lbs of grapes. I got 9 to 10 gallons of wine out of each at the pressing, and decided to ferment the 2nd run in the same batches. As I did for the 2019, post-fermentation all will be mixed.

For the two Merlot and the Vinifera Blend I used 5 gallons of water and 10 lbs of sugar. When I got to the Zinfandel, I realized I should have used 4 gallons of water and 8 lbs of sugar for the preceding batches, so I shifted gears. I divided the Zinfandel pomace in 3 and added to the first batches. I’d rather have less wine of a better quality.


Grape pomace from 288# Merlot pressed at SG 0.998 (batches 1 & 2)
pomace from 144# Vinifera Blend pressed at SG 0.997 (batch 3)
pomace from 180# Zinfandel pressed at SG 0.996
Water 5 gallons hot tap water for each batch
Sugar 10 lbs for each batch
Yeast Red Star Premier Rouge remaining in the pomace
Tannin 2 tsp for each batch
Acid Blend 5 tsp for each batch
Fermentation Oak Merlot + Vinifera Blend has 8 oz French medium toast shredded oak each in the original batch
Merlot + Zinfandel has 8 oz American medium toast shredded oak each in the original batch
Fermax 5 tsp in each batch
Sulfite added as needed, see below


The same method is used for the pomace from each grape:

Put 1 gallons hot tap water in the fermenter. Added 10 lbs sugar, tannin, acid blend, and Fermax — swirled the fermenter until it was mostly dissolved. Added 1 gallon of host water and swirled until all was dissolved. Added 3 additional gallons of cool tap water. Stirred in pomace.

Divided the Zinfandel pomace and distributed among the 3 batches.

The SG for the water should be around 1.078. The actual SG is low because the pomace contains wine that is all but fermented out, SG < 1.000. Last year I freaked and added more sugar. This year I’m ignoring the SG. Once the wine ferments out, I’ll calculate SG by averaging 15 gallons with an OG of 1.078 and the OG of however many gallons of wine I get above 15 at the average OG of the original grapes.

SG: 1.054
This fermented FAST! Pressed today, putting the wine in 54 liter demijohn and 5 gallon carboy. 10/24/2019
SG: 1.000
Racked. Discovered I have hydrogen sulfide (H2S2) in the demijohn! The smell is unmistakable, in a very bad way. The carboy and the topup containers are unaffected.

Searched on treatment for H2S, both on the net and WMT. First intervention is to stir hard to drive off gas, then dose with K-meta. Divided wine between 3 primary fermentation buckets. Stirred each for 5 minutes with a drill mounted stirring rod, changing direction every 30 seconds. This drove off a LOT of gas.

WARNING: H2S is apparently flammable — I opened all the windows and had a fan running across the buckets.

Added triple dose of K-meta (3/4 tsp per 5 gallons) and racked back into demijohn.

SG: 0.994
I ordered 30 grams of Reduless, which arrived yesterday. The directions say 0.4 to 0.6 grams dissolved in 6 ml water per gallon of wine. The demijohn is 14 gallons and I went with the middle ground, 0.5 grams, so I need 7 grams. Except I don’t have a scale fine enough to measure. 30 divided by 4 is 7.5, so I divided the package in 4 and added 1 portion.

I siphoned 1 gallon out of the demijohn, added the Reduless, and stirred for 2 minutes, changing direction every 30 seconds. There was some sediment on the bottom, but it was completely distributed, so I figured the Reduless was distributed. This produced a lot of gas, but almost no perceptible H2S smell. Then I poured the reserved gallon back in.

SG: 0.994
Fined with Kieselsol & Chitosan. Went to American Brewmaster — they were sold out of SuperKleer, so Mark (owner) went in back and measured out 35 ml Kieselsol & 30 ml chitosan, which is the dosage he looked up for 14 gallons. 12/02/2020
SG: 0.994
Racked the demijohn. Sediment was less than expected, but a solid layer of a brownish color, presumably the Reduless. Smell is gone, but the wine has a residual flavor that is off. 12/06/2020
SG: 0.994
Racked both the carboy and the demijohn. Carboy tastes great — I’m guessing this one is from the pomace of the Vinifera Blend, as the Petit Sirah is prominent. The demijohn still has an off flavor.

I decided to proceed with an oak experiment

SG: 0.994


Yield ? bottles
Alcohol x.xx%