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1680 Black River Road
Far Hills
NJ, 07931
United States
Meera Singh

A Revolution In Winemaking

The GOfermentor brings 21st century technology to winemaking. This technology dramatically reduces the water usage. The GOfermentor provides better control of fermentation parameters, minimal exposure to air, and automated cap management, producing better extraction and color and ultimately better quality wine.

Guide to implementing the GOfermentor in your winery

GOfermentor was created by Meera and Vijay Singh. We started winemaking for ourselves and found the existing technology too tedious and environmentally unsound. Traditional winemaking is more janitorial work than wine making! You have to wash all the tanks before you start, then you clean all the equipment, then you have to wash the whole mess again when you are done. Punchdown is another tedious and dangerous process. The overwhelming amount of work led us to rethink the whole winemaking process, to optimize it so that it could be run by just the two of us. To our surprise, the new automated punchdown, build in press technology helped us extract better color and flavor. Our wines won awards, and others wanted to use the technology.

Dr Singh is a world-recognized biotech scientist, he developed the highly acclaimed Wave Bioreactor which revolutionized the production of biopharmaceuticals by using a disposable cultivation bag. He decided to apply his expertise in disposable processing to the key issues of winemaking. The patented GOfermentor and SmartBarrel wine aging/storage system was born out of this work.

GOfermentor the Instant Winery


One ton maximum grape capacity. 4’x4’ space. 110VAC.


Single-use liner, no cleaning. No wash or waste water, no environmental permits. 


Medical grade BPA-free biodegradable single-use liner. No contamination. No off-odors. 


Unattended punch. Set schedule on your smart phone.


Built-in press. Machine presses out the wine. 

starting at $71/month

Complete system $1700, 0% factory financing.

 Temperature control option extra. 

Single-use liners $100 each.


Making Red Wine in the GOfermentor
Making Red Wine in the GOfermentor
Pressing Wine in the GOfermentor
How the SmartBarrel works
How the SmartBarrel works
The SmartBarrel employs an inert, food-grade, low monomer, low oxygen-permeable flexible liner placed inside a barrel or other supporting container. The liner is filled with no headspace. Wine can be stored indefinitely without risk of oxidation. No need for “topping off”.
Making White Wine in the GOfermentor
Making White Wine in the GOfermentor
Making White wine using GOfermentor's built-in Press

News Archive

Village Vintner using 12 GOfermentor's
25 September, 2019

Vijay Singh at the Village Vintner Winery

Groundbreaking Technology Changes the Face of Winemaking in Time for 2019 Harvest
23 August, 2019

Single Use Liner Reduces Use of Water, Sulfites. Eliminates the press.

The GOfermentor is used by many commercial wineries all over the world. One of the interesting features is the ability to add fermentation capacity within days. If a winery is suddenly faced with a larger than planned amount of grapes they can simply get a GOfermentor shipped to them and be running in just days from order.

Meera and Vijay Singh

Meera and Vijay Singh

The GOfermentor ferments the grapes to wine in a single-use plastic liner. The liner is supplied new each time and no washing is necessary. Punching is done by periodically inflating a separate chamber with air. This can be done on a user-set schedule reducing labor. Up to one ton of grapes can be processed per batch. The pressure and motion of the inflating air bladder during the automated punch disperses the cap during fermentation, keeping it moist. It also provides more uniform temperatures reducing the possibility of “reductive” odors.

On completion of the fermentation, the wine can be pressed out using the built-in press. No external press is needed. The inflation chamber simply squeezes the must, 150 gallons/ton, through a perforated screen leaving the waste pomace in the liner which can be used as compost.

There is no exposure to air during fermentation or pressing. Minimal water (90% less) is required for cleaning and little waste water is generated. The liner itself is disposed of in an environmentally responsible fashion, where it biodegrades in a landfill. For the next fermentation, a new liner is used.

GOfermentor with App

The advantages of the cost-effective GOfermentor are numerous:

  • No installation is required.
  • There is 90% less water usage with no cleaning involved.
  • The machine contains a labor-saving, built in press; pomace remains in liner for easy disposal.
  • The punch and press are completely automated and available on a smart phone app.
  • The machine provides homogeneous mixing, there are no temperature variations from center to side, therefore no reductive smells.
  • Quality of wine is enhanced, producing superior color extraction, flavor and aromatics.

The GOfermentor was developed to bring 21th Century processing techniques to winemaking. It was invented by Dr Vijay Singh, an expert in pharmaceutical bioprocessing. He used his background in fermentation and disposables to make a winemaking machine that requires no cleaning with the objective to eliminate waste water generation. The resulting device is simple to use and inexpensive – a complete system capable of processing 1 ton is less than $ 2000. Another objective was to eliminate the need for a costly and labor-intensive press. However, ultimately the machine had to make superior wine. This was ensured by his wife Meera, a WSET Level 3 sommelier.

Development of the GOfermentor begun in 2013 and a number of trials were performed in the US, Italy, Australia, and Spain. The ability of the GOfermentor to produce superior wine has been validated in our own winery – Sky Acres Winery – which has won more than 50 prestigious wine awards, including Best in Class at the 2019 San Francisco Chronicle wine competition for their Sky Acres Winery, Black River Red. All made in the GOfermentor.

“Our wine contains no sulfites because the process happens in closed liner; it does not react with air,” Singh confirms. “And one of the best things is that – our system doesn’t require infrastructure. It takes up only a 4×4 foot floor space.”

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GOfermentor ad

Can Wineries Stop Wasting Water? GOfermentor is the solution.
19 July, 2019

Wineries consume enormous amounts of water. Water is used to clean equipment before and after use, generating a tremendous amount of waste water containing high levels of organic materials and detergent residues. Most jurisdictions are now forcing wineries to monitor and treat their waste water. A study done by VITEC in Spain estimated that 4 gallons of wash water are consumed per gallon of wine made. The problem is so serious that licenses for many new operations are being held up because of waste water permit issues.

Can we use less water? Yes, the GOfermentor® is a solution.

The GOfermentor is a patented wine making device that conducts fermentation inside bags. There is no washing as the bags are delivered clean, and only used once. Water usage is vastly reduced (by 90% on average), making the winery more environmentally sound. No washing, no steaming, no detergents, and minimal waste water generation. Eliminating cleaning reduces labor so the winemaker can devote their time to more productive activities. Numerous trials have shown that the GOfermentor is capable of producing superb wine with no off-odors or reductive characteristics. A press is built into each GOfermentor, eliminating the need to wash a conventional press. 

Again, saving water. After pressing, waste pomace is contained inside the fermentation bag which is then removed; the pomace can be used for compost, and the biodegradable bag is discarded. Typically, 3 to 4 bags are used per GOfermentor per season.  

In short, The GOfermentor enables a winery to operate with minimal water. Wineries can be operated in urban and rural settings without discharge permit issues. The GOfermentor is low cost and can be installed in hours without requiring any significant infrastructure.

"GOfermentor is revolutionizing the wine making industry, as it requires considerably less capital than the traditional-style fermenters, making it an “Instant Winery”.

About GOfermentor

The GOfermentor was developed by Dr. Vijay Singh, a world-recognized biotech scientist with hundreds of published papers. Among his 20 or so patents, is his highly acclaimed Wave Bioreactor, a device developed in the late 1990s, which revolutionized the production of biopharmaceuticals by using a disposable cultivation bag supported on a rocking platform. Vaccines, antibodies, cytokines, proteins, are all commercially manufactured in the Wave Bioreactor, now owned and marketed by General Electric Healthcare.

For more information, visit, or call 877 3775359

New option for easy winery trials – GOfermentor Jr
15 July, 2019

Small-scale trials are difficult for wineries as they require small equipment that must be cleaned and monitored. Punching is tedious, and pressing is very labor intensive as automatic presses cannot be used for these quantities. Temperature control and cooling is difficult. Yet, small-scale trials are essential to making better wines. Especially, with climate change, it has become critical to understand how to deal with grapes with higher sugar levels and other different characteristics.

Enter the GOfermentor Jr. While originally designed for the home market, it is ideal for small batches (50 to 110 lb grapes). All operations are done in a single-use plastic bag so no cleaning is necessary. Punching can be done unattended on a user-set schedule. Pressing is as simple as pressing a button on the controller. Wine is forced out of the GOfermentor Jr by built-in rubber bladders. Waste pomace is contained in the fermentation bag which is simply lifted out and discarded. The built-in press can also be used to juice grapes for white wine. Temperature sensing and an internal cooling coil is available. Automated operation and temperature control ensures reproducible operation making trials more useful and reliable. Prices from $600.

No Press = No Mess! Use the GOfermentor ®
01 July, 2019

There’s a reason why winemaking is sometimes referred to as “mud pies for grown-ups.”  Pressing musts, particularly on a small scale, is tedious, messy and labor-intensive.  It requires careful attention to balancing yields against harsh tannin extraction. 

The ideal pressing system creates a thin, well-drained static cake to which low pressure is gently applied. Thick press cakes require high pressures and/or mechanical redistribution of the cake either by hand or by motorized equipment. 

Conventional small batch presses are poorly designed.  Most vertical basket presses have steel bottoms and force juice through a foot or more of pomace through side slats at great pressure, resulting in harsh tannins and poor yields.  Some use water bladders which spread the pomace to a thinner cake.  This is an improvement, but when 50 psi water pressure is employed, once again harsh tannins result.

Horizontal basket presses aren’t much better.  They tumble the cake repeatedly while beating it with chains, repeatedly pressing at higher and higher pressures.

The GOfermentor single-use system not only eliminates punch-down labor and water consumption during fermentation, but also presses the wine for you at the press of a button.  The system’s innately gentle pressure and well-engineered filtration system ensure that excellent yields, 150 gallons/ton, are obtained with the richest, softest tannins possible.

This pressing action is performed in a single, steady motion.  Since the cake is static, it acts as a filter, so this action also results in good clarity and low lees and other solids, thus minimizing sulfide production in the receiving vessel and optimizing settled yields. This happens automatically, so that it is literally impossible to obtain harsh tannins from a GOfermentor.

The best part is once you finish pressing, you just remove the bag containing the spent pomace and throw it out. No cleaning. Put in a new bag and you are ready for the next fermentation.

Why the GOfermentor®, a Closed System, Does Not Produce “reductive” aromas.
17 June, 2019

Apart from the easily avoidable presence of elemental dusting sulfur in crushed musts, the primary cause of H2S and other sulfides in primary fermentation is production by yeasts during cycles of protein dismantling and re-synthesis. Linda Bisson of UC Davis has done much to elucidate fermentation kinetics and the causes of sulfide production.

Proteins are long chains of amino acids that may have structural roles (gelatins, cell wall components, etc.) or they may catalyze and regulate metabolic reactions (enzymes). Methionine is the initiating amino acid in the synthesis of virtually all eukaryotic proteins. Cysteine is vital in their folding and shaping. Both contain sulfur groups.

Whenever fermentation conditions change, yeasts retool by breaking down obsolete proteins, temporarily liberating free H2S and other sulfides and then recapturing some or all of it in subsequent synthesis. When cysteine breaks down it releases H2S with an odor of rotten eggs. Methionine contains a methylated sulfur and is released as methyl mercaptan with an odor of rotten cabbage. These constitute the so-called “reductive” aromas.

In conventional winemaking, two different temperature zones recur throughout fermentation multiple times per day during the active period from 20 to 10 brix. The skins in red wine fermentations are buoyed up by CO2 evolution. Since heat rises, the pomace cap is always warmer than the juice below, and the difference can be as much as 10 C in just a few hours.

Normally punch-downs or pump-overs performed by humans have 8 to 12 hour intervals during which temperature spikes in the cap cause yeasts to retool, creating nutrient deficiencies and sulfides.

GOfermentors don’t have lives. They don’t have wives and kids. They always show up for work. They can thus be programmed to perform gentle mixing on a much more frequent basis day and night. The GOfermentor periodically squeezes the fermenting must using the patented internal inflatable chamber. This promotes bulk mixing unlike anything possible with pump-over or manual punching. This action also lifts the settled yeast off the bottom and disperses it. This avoids the development of stagnant layers of decomposing yeast. Fermentation temperatures and other parameters are more homogenous and proceed on a steady curve with more stable conditions.

The result is that in the GOfermentor little yeast retooling occurs. Sulfide production, stuck fermentations, and the butyric acid bacterial spoilage that occurs in hot caps are prevented.

GOfermentor, the Instant Winery
03 June, 2019

The GOfermentor is available has a nominal volume of 1000 liters. This can be used for a batch size ranging from 200lbs to 1 ton of grapes per run. The GOfermentor used 44″x 44″ of floor space. Standard household-type electric service 110 VAC 5amp. In the case of red wine, the integral punch system manages the cap, and is also used for pressing the wine at the completion of fermentation. With white wine, the punch system is used to press out the grape juice prior to fermentation and can later also be used for bâtonag. No cleaning, automated punch, no press required. Controlled by an app on your smart phone.

New GOfermentor Technology Makes Waterless Winery a Reality
20 July, 2015

What if… you could eliminate oxygen and water completely from the winemaking process while, at the same time, reduce your labor costs and create better quality wines?

GOfermenterNEW JERSEY, JULY 18th 2015 – A new technology called GOfermentor, set to revolutionize the winemaking process in the areas of oxygen control and water waste, has been released onto the international winemaking market.

GOfermentor brings groundbreaking technology to the age-old art of winemaking, providing greater control of fermentation parameters, minimal exposure to air, minimal use of water, and an internal-automated cap management system, resulting in notably better quality wine, every time.

The technology creates a more controlled environment (which minimizes potential contamination) than fermentation in a macrobin. Moreover, the absence of oxygen allows the winemaker added direct-control over the final product.

GOfermenter sketch

GOFermentor Has Made The Waterless Winery A Reality

Water-usage costs are vastly reduced (90% on average), making the winery a more environmentally sound facility. No washing, no detergents, no scrubbing are needed. The system employs an internal and automatic punch-down method which ensures the cap remains moist without exposing the fermenting must to air.

Since GOFermentor requires no wash and rinse, its usage results in meaningful labor cost reductions so staff can be reassigned within the winery.

“GOfermentor is revolutionizing the fermentation process, and it affords considerably less capital than the traditional-style fermentors. The technology has garnered a broad appeal,” say Frederick Brown, Head of Business Development at GOfermentor. “Wineries in the U.S. and Europe have already embraced the GOfermentor technology, as we prepare to roll it out globally in the coming months.”

About GOfermentor

The GOfermentor was developed by Dr. Vijay Singh, a world-recognized biotech scientist with hundreds of published papers. Among his 20 or so patents, is his highly acclaimed Wave Bioreactor, a device developed in the late 1990s, which revolutionized the production of biopharmaceuticals by using a disposable cultivation bag supported on a rocking platform. Vaccines, antibodies, cytokines, proteins, are all commercially manufactured in the Wave Bioreactor, now owned and marketed by General Electric Healthcare.

The GOfermentor is the result of four years of development by Dr. Singh to develop better winemaking technology that uses no wash water, excludes damaging air from the process, has integral cap management and pressing capabilities, and yet is cost-effective. Extensive trials and product development were performed at his own Sky Acres Winery in New Jersey.

GOfermentor Jr
New option for easy winery trials-The GOfermentor Jr is ideal for small batches (50 to 110 lb grapes). All operations are done in a single-use plastic bag so no cleaning is necessary. Punching can be done unattended ...
The GOfermentor is available has a nominal volume of 1000 liters. This can be used for a batch size ranging from 200lbs to 1 ton of grapes per run. The GOfermentor used 44"x 44" of floor space. Standard ...