Harvesting & Pressing Grapes for Kosher Winemaking

Last week, Kosher Assistant Winemaker Yanky Drew and his helper Chananya Zirkind were busy overseeing the harvesting and pressing of Chardonnay grapes sourced from North Fork, Long Island, to be used in making a sparkling wine.

I spoke with Yanky to better understand the ins and outs of kosher winemaking and the specifics of the harvesting, pressing and racking processes in particular. Check out the video embedded above for a look at the process, and then read on for details about each step.

The Two Tenets of Kosher Winemaking


Kosher Assistant Winemaker Yanky Drew prepares to rack the kosher wine.

Yanky explained that there are two main tenets when making kosher wine:

  • The wine must only be handled by an observant Jew.
  • The ingredients used in making the wine (such as yeast and fining agents) must be kosher.

These two principles are the foundation of all kosher winemaking and guide how Yanky and his team operate when producing wine with City Winery.

Cleaning the Press

Yanky and Chananya spent three hours cleaning the press in preparation for the grapes. They used a tweezer-like tool to individually pick out all of the seeds and skin from a previous pressing session. The press has to be completely clean of other fruit that may not be kosher. After all of the fruit was removed, the duo powerwashed the press for good measure.

In general, the rule regarding equipment and vessels used in kosher winemaking is that if it is to be used for storage, it must be kosher, but if it is used for anything but storage (such as transportation), it just needs to be completely clean.

For example, hoses used for moving wine from one vessel to another do not need to be kosher — they must only be clean. However, a tank for aging wine must be a designated kosher vessel.

Picking the Grapes

Grapes used for kosher winemaking can be picked by anyone, and the vineyards do not have to follow any kosher procedures. The only considerations are how old the vines are and what other foods are grown in the area.

Vines must be at least three years of age, and the grapes must not be grown in the same field as other fruits or vegetables. Yanky made sure of this when he visited the vineyard, located in North Fork, Long Island.

Furthermore, if any machinery is used — such as a forklift — it must be operated by an observant Jew. In this case, Yanky manned the forklift.

Pressing the Grapes

This time around, Yanky and Chananya pressed Chardonnay grapes for a sparkling wine.

In maintaining kosher standards, only observant Jews are able to handle the product. Along with keeping kosher standards in the pressing process, though, general winemaking procedures must also be followed in order to produce a high-quality wine. For this press, the team needed to follow sparkling wine pressing protocols, which call for a light, delicate press with many cycles, whether kosher or not.

Racking the Grapes

Racking is the process of carefully moving wine from one place to another.

When a wine is pressed, the first racking occurs when the pressed juice is transported to vessels. Sometimes this happens within a winery, but in this case, it happened at an off-site facility in Long Island. In this case, the wine was racked directly into vessels pre-loaded in Yanky’s van. (Check it out in the video above; it’s quite a site!)

Yanky’s vessels for transportation were all designated kosher. He used two 60-gallon drums, one 15-gallon keg and one 5-gallon glass carboy.

“Kosher Tape” Seals the Deal


“Kosher tape” seals a power switch during a racking, so that only Yanky can turn it off.

To make sure that only observant Jews have access to the kosher wine, Yanky uses “kosher tape” — which is distributed by the Orthodox Union, the supervising agency that oversees the procedures for creating kosher wine — to seal all storage vats, taps and valves. This ensures that only he touches the wine, as a tampered seal will prove otherwise.

Yanky also uses the tape to seal off power switches during racking when a pump is necessary. Only he can turn off the power to the pump.

Kosher winemaking may seem like a mystery for those not well-versed in kashrus, the set of Jewish dietary laws. So, let us know in the comments if you have questions about kosher wines.

City Winery Varick & Vines Chardonnay 2009

Variety: Chardonnay
Vintage: 2009
Vineyard: Poseidon Vineyard
Alcohol: 13.5% vol
Volume: 750ml
AVA: Carneros, CA
Cases production: 76 cs bottled

Vineyard description: 100% from Poseidon Vineyard situated in Carneros, Napa Valley. Cold Climate influence, allowing bright natural acidity.

Winemaking Info: 100% barrel fermented at low temperature with less stirring twice a month. All French oack, 20% new, 80% one and two year-old barrels, mainly Dargeau & Jaegle barrels.

Wine Description: Intriguing complex nose of stone fruits, butternut squash and lemon custard with resinous wood overtones. A mix of pineapple and ripe red apple dominate the palate layer with vanilla and toasty oak. Finishes with a mineral note and lingering of white flower aromas.

Aging Capacity: 3-4 years.

Food Pairing: Coconut milk and heavy cumin. Smoked cheese. Baked fish in a fruity glaze. Lemon roasted chicken.

Buy the City Winery Varick & Vines Chardonnay 2009 here.

City Winery Varick & Vines Chardonnay 2010

Variety: Chardonnay (100%)
Vintage: 2010
Vineyard: Windsor Oak Vineyard
Alcohol: 13.0 % vol
Volume: 750 ml
AVA: Central Coast, CA
Cases production: 50 cs bottled

Vineyard description: 100% from Windsor Oak Vineyard situated in Russian River, Sonoma Valley. Cold Climate influence allowing bright natural acidity.

Winemaking Info: 100% barrel fermented at low temperature with less stirring twice a month. All French oak, 30% new, 70% one- and two year-old barrels, mainly Dargeau & Jaegle barrels.

Wine Description: Intriguing complex nose of toasted pine nuts, butternut squash and lemon custard with resinous wood overtones. A mix of pineapple and ripe red apple dominate the palate layer with vanilla and toasty oak. Finishes with a mineral note and lingering sage and tea leaf aromas.

Aging Capacity: 5 to 6 years.

Food Pairing: Coconut milk and heavy cumin. Smoked cheese. Baked fish in a fruity glaze. Lemon roasted chicken.

Buy the City Winery Varick & Vines Chardonnay 2010 here.

City Winery Varick & Vines Chardonnay 2008

Variety: Chardonnay
Vintage: 2008
Alcohol: 13.5% vol
AVA: Carneros, CA

Winemaking Info: 45 days slow fermentation in tank at cold temperature for ¾ of the blend and ¼ barrel fermented into 1 year used French oak (Dargaud & Jaeglé and Francois Frères barrels). No malo-lactic fermentation to keep aromatic freshness and lively mouth feel.

Wine Description: Made from fruit grown in the Poseidon Vineyard, at the confluence of Carneros Creek and the Napa River. This is the southernmost vineyard in Napa-Carneros, subject to the cool influence of fogs edging up from the San Francisco Bay. This Chardonnay exhibits vanilla, tropical fruit and lemon blossom characteristics with slight minerality & green apple aromas. A touch of oak gives this wine an elegant, buttery texture & a long finish.

Buy the City Winery Varick & Vines Chardonnay 2008 here.

City Winery Downtown White 2010

Variety: Chardonnay
Vintage: 2010
Vineyard: n/a (blend)
Alcohol: 13.5 % vol
Volume: 750 ml & Tap
AVA: Central Coast, CA
Cases production: 100 cs bottled & Kegs
Vineyard description: n/a — Blend of 3 vineyards.

Winemaking Info: Long slow fermentation in stainless steel for two months, aged on lees without malolactic fermentation. 10% barrel fermented and blended back into tank prior to bottling.

Alcoholic fermentation completed, no malolactic fermentation.

88% 2010 Chardonnay, Santa Maria, CA

10% 2010 Pinot Gris, Oregon

2% 2010 Gewurztraminer, Oregon

Wine Description: Bright and clear light yellow. Bouquet is a complex of vibrant stone fruit, lemon blossom and citrus oil aromatics, with a touch of oak. Medium bodied with lifted acid on the mid palate, persistent finish with good fruit expression.

Aging Capacity: Now to 2 years.

Food Pairing: Can be enjoyed by itself, chilled. Also pairs well with a light meat or pork dish.

Buy the City Winery Downtown White 2010 here.

City Winery Downtown White 2009

Variety: Chardonnay
Vintage: 2009
Vineyard: n/a (blend)
Alcohol: 13.5 % vol
Volume: 750 ml & Tap
AVA: North Coast, CA
Cases production: 50 cs bottled

Vineyard description: n/a — Blend of 3 vineyards.

Winemaking Info: All wines have been fermented into stainless steel tank to preserve aromatic freshness and natural acidity.

Alcoholic fermentation completed, no malo-lactic fermentation.

57 % 2009 Chardonnay, Russian River, CA

40 % 2009 Chardonnay, Mendocino, CA

3% 2009 Gewurztraminer, Santa Maria, CA

Wine Description: Round and fresh. Orchard apple nose with hints of thyme and citrus. Juicy mouth feel with note of honey.

Aging Capacity: Now to 3 years.

Food Pairing: Can be enjoyed by itself, chilled. Also pairs well with a light meat or pork dish.

Buy the City Winery Downtown White 2009 here.

Salomon Hill Vineyard

City Winery has establishing relationships with a number of premium vineyards for the 2011 harvest. Here’s a look at one of our partners, Salomon Hill Vineyard.

VARIETY: Chardonnay
LOCATION/REGION: Santa Maria, Central Coast, CA
CLONE: Clone 76 on his own root (no rootstock).
TERROIR: Alluvial loam
OTHER INFO: Double can on VSP
PRICE: $1,950 per barrel

DESCRIPTION: Solomon Hills Vineyards are owned and operated by the same team that manages Bien Nacido Vineyards. Located at the western most end of the Santa Maria Valley AVA, Solomon Hills Vineyards are nestled in its namesake Solomon Hills overlooking the Pacific Ocean. The vineyard enjoys a cool growing climate creating ideal conditions for growing some of the most exciting and innovative Pinot Noir and Chardonnay in Santa Barbara County.

WINE STYLE: Racy in acidity and bone dry. Offers rich, ripe pineapple, lime, kiwi and pear flavors, balanced with citrus fruit tang and just the right touch of roundness on mid palette.

Scopus Vineyard

City Winery has establishing relationships with a number of premium vineyards for the 2011 harvest. Here’s a look at one of our partners, Scopus Vineyard.

VARIETY: Chardonnay
LOCATION/REGION: Sonoma Mountain, CA
CLONE: Clone 4
TERROIR: Volcanic origin / very gravelly soils
OTHER INFO: 12-acre mountain vineyard with northeastern exposure; cool-climate viticulture; vertical trellising, cane-pruned.
PRICE: $2,250 per barrel

DESCRIPTION: Owned by Bay Area venture capitalist Ori Sasson, this tiny jewel of a vineyard is perched high on Sonoma Mountain where growing conditions are best suited to cool-climate grapes such as Chardonnay and Pinot Noir. The vineyard produces very low yields that translate into intense flavors. For the last two years, the vineyard has been managed by Ulises Valdez—possibly the most well-known grower in Sonoma. Ulises’ is know as the “David Abreu” of Sonoma County grows grapes for such well-known Chardonnay producers as Paul Hobbs and Mark Aubert.

WINE STYLE: Aromas of stone fruit, jasmine, minerals and lemon zest. Dry and nervy, with brisk acidity and a saline nuance giving energy and lift to its citrus and orchard fruit flavors. Vibrant and impressively pure chardonnay.