How not to be a winemaker - Part 3

Florida Jim

Florida Jim
Different labels had different protocols in the winery.
Some were very hands on with sulphur additions at the crush pad, inoculation with commercial yeast, chemical additions, fining, filtering, micro-oxygenation, reverse osmosis and any number of other techniques that were intended to make stable, consistent yet quality wine.
While there is a never ending argument among consumers as to hands on makers and those, like myself, who were mostly not, that argument is less prevalent in the winery. It all comes down to folks wanting to make the best wine they can while still making a living. And it hurts, in many ways, to lose an entire lot or even a single barrel. So some folks took prophylactic measures.
I don’t fault them but I preferred a different path.

I was willing to gamble a bit so decided to use no sulphur when the fruit came in, only partial de-stemming for Pinot and 100% whole-cluster for Syrah. I inoculated all my ferments with a technique called pied du cuve (literally, foot of the barrel) which meant I’d harvest about 5 pounds of fruit a week before we picked, then set it to fermenting in 5 gallon buckets at my house so that, by the time we picked, I had a wild yeast population sufficient to start our full on fermentation.
Working in a custom crush one realizes that there is a “house yeast” which will, at some point take over your ferments and kill all the wild yeasts. But the technique I used gave me a significant population of wild yeasts ready to start the ferment and continue it for a day or two. It also gave me CO2 cover in about 12-18 hours. That’s important because there are always yeast cells kicked up into the air when working in a facility with so many different protocols being used. A CO2 barrier helps.
I also foot tread all my red ferments because my feet are softer than a metal punch down tool and since I did a lot of whole cluster, my feet didn’t tear the stems the way the tool did. Additionally, when your stomping around in a bin of grapes you get to smell and taste close-up as well as feel for hot/cool spots and mix things up to make the temperatures more homogeneous.
I rarely added anything to a ferment; if I saw especially low nitrogen numbers, I’d add a bit. But that was a rare thing as my growers knew their stuff and I picked earlier than most folks thereby getting grapes more in balance chemically.
I used barrels for elevage but all were greater than 10 years old. I just can’t stand wood smells or flavors in wine.
Lastly, I was a fan of cross-flow filtration. By doing so, I could lessen sulphur additions at bottling and I could assure biological stability. Cross-flow is much more gentle than pad filtration and I often had wines come out of the filter tasting better than when they went in.
While filtering is a controversial technique, my experience was that not using it led to some clients having whole lots rejected by the market for problems like re-fermentation in bottle or spoilage. And of course, the label had to make it right by taking back already bottled goods. That was a hit I could not afford to take. I was not so driven by philosophy that I eschewed practicality.
No other techniques or additives for me. I was seeking my own voice in wine making and, while I believe I achieved that, I lost barrels to spoilage and a whole lot to Brett; sometimes when you gamble you lose.
 
originally posted by Florida Jim: How not to be a winemaker - Part 3partial de-stemming for Pinot

Jim, that reminds me of a long-ago happening. Bobby Cox, an enigmatic but accomplished wine grower, did no de-stemming of his 1989 Texas Pheasant Ridge Pinot Noir. This bottling had lots of stems/leaves/etc. in it but was a terrific wine, so acclaimed by many knowledgeable wine people. It was Burgundy-like.

San Antonio took one look at their allocation of this Pinot and rejected it, probably without even sampling it. Their whole allocation came to where I am and I bought several cases for a song. I loved serving it blind to quasi-experts on wine and invariably they would think it was a Chambolle or something similar. I even sent some bottles to some online friends (this was on Prodigy) and they also really liked it.

It was a fun wine that was memorable for a number of reasons.

. . . . . Pete
 
"Working in a custom crush one realizes that there is a “house yeast” which will, at some point take over your ferments and kill all the wild yeasts."

I tried double-clicking on that for more detail, but WD apparently doesn't support the feature.

Do you think the "house yeast" is an accumulation/evolution of yeast introduced over the years from the grapes you brought in, or something else entirely?

And how do you tell that it's taken over?
 
Pavel,
Where I worked, there were 28 other winemakers. All of them made wine differently.
It was mostly a Pinot/ Chardonnay house so any commercial yeast that was introduced became part of the mix.
Yeasts work on a hierarchy; wild yeasts are the most vulnerable, commercial the most aggressive.
So when someone inoculates with Williams Seylem, for example, you can bet that that yeast will survive over all others.
WS is a killer; which simply means that when it takes over a fermentation, it kills all other yeasts in that ferment.
So, my job was to gets as large a population of wild yeasts as I could to inoculate my grapes - knowing full well that 2-3 days later, they would all be killed by the “house yeast,” most often WS.
This is, for many, not a bad thing. WS will make sure you get thru fermentation - that is, no stuck ferments. It will live thru remarkable amounts of alcohol and deliver a dry ferment.
Most wild yeasts can’t handle big alcohol so, if you like “hang time” WS is the yeast that will get you dry.
But I picked early, so stuck ferments we’re not something I saw; my alcohols seldom got to 14% so even wild yeast would get me there.
But if WS is in the house, you know that at 36-48 hours, it will be in your ferment and kill every other yeast.
But if you get that first 36-48 hours on wild yeasts, the complexity of your wine goes up exponentially and, after WS takes over, you know your ferment won’t stick. Win/Win; you get wild complexity and industrial efficiently..
It’s not ideal but you do what you can.
Best, jim
 
originally posted by Pavel Tchichikov:
"Working in a custom crush one realizes that there is a “house yeast” which will, at some point take over your ferments and kill all the wild yeasts."

I tried double-clicking on that for more detail, but WD apparently doesn't support the feature.

Do you think the "house yeast" is an accumulation/evolution of yeast introduced over the years from the grapes you brought in, or something else entirely?

And how do you tell that it's taken over?

There have been scientific studies on this that back what Jim says. Whether one does indigenous yeast or cultured yeast ferments, the yeast populations converge with time on a stable equilibrium that is dictated by the yeasts resident in the facility.

Mark Lipton
 
originally posted by MLipton:
There have been scientific studies on this that back what Jim says. Whether one does indigenous yeast or cultured yeast ferments, the yeast populations converge with time on a stable equilibrium that is dictated by the yeasts resident in the facility.
...and their tolerances for the chemical soup they are living in. Too much alcohol kills one, too much sugar inhibits another....
 
It's standard natural selection really. In any environment, if there is a yeast, wild or artificial, that has a survival advantage, it will take over. I once tried to bring my Provencal starter back, having dried it, of course, to see if I could get that flavor in DC. Within two batches, the DC wild yeast had taken over. And, an artificial yeast, designed to dominate so that it stabilizes, would quickly take over a micro-environment such as the one Jim describes.

By the way, I would like to echo others who have thanked Jim for this series of threads. Keep them coming. They are fascinating.
 
Hi Jim,
Thanks for the fascinating threads.

In regards to sharing the crush facility, did any of the wine makers object to bringing in those 5 gallon carboys started with the wild yeasts? I’m wondering if the other winemakers were concerned at all about the introduction of Brett and other wild yeast strains into the crush facility environment.
 
Marc,
Other people in the facility let their ferments go wild and, of course, their are wild yeast on every grape that comes in. So my Inoculant was simply more of the same.
 
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