Stainless Steel Wine Fermenters

Stainless_ Steel_Wine_Tanks

The stainless steel wine fermenter is the vessel used in winemaking to ferment grape juice into wine. It’s where the magic happens! During fermentation, yeast converts the sugars in the grape juice into alcohol and carbon dioxide, along with various flavor compounds and other by-products.

wine fermentation tanks

1.The types of wine fermenters: 

Types Detail
Open top of wine fermenter An open-top wine fermenter is a type of vessel used in winemaking that lacks a sealed lid or cover, allowing easy access to the fermenting wine.
Closed top of wine fermenter A closed-top wine fermenter is a vessel used in winemaking that features a sealed lid or cover, which prevents exposure of the fermenting wine to the external environment.
Variable capacity wine tank A variable capacity wine tank, also known as a floating lid tank or variable volume tank, is a specialized vessel used in winemaking for fermentation, storage, and aging of wine. It is designed with a floating lid that can be adjusted to accommodate different volumes of wine.
Custom Design wine fermenter Fully customization in size, shape, valves, temperature controls, etc.

2.Stainless Steel Wine Fermenter Sizes

Capacity Detail
Small of wine fermenter From 100L-1000L, used by home winemakers and small commercial wineries
Medium of wine fermenter From 2000L-10000L,  for medium scale winery production
Large of wine fermenter Over 10000L, used by large commercial wineries
Custom capacity of wine fermenter Any capacity based on winery needs

3.Stainless Steel Wine Fermenter Design and Layout

The specification for standard stainless steel wine fermenters:

1)Sanitary Stainless steel 304 or 316L, 

2).Conical centric top or off-centric conical top;

3).Top Manhole Cover,
4).Sample valve;
5).2″Wine outlet and drain outlet assembly,   

6).2″racking valve;
7).Dimple plate cooling jacket or spiral cooling coil; 
8).Fully welded cladding;
9).Side rectangle or oval manway;
10).PT100 temperature probe;
11).Glycol inlet/outlet

12).2″ Breather valve;

13).Sloped bottom or conical bottom;

14).Filter Screen for red wine fermenter;

15).CIP spray ball;

16).Bimetallic thermometer;

17)Sight glass liquid level meter;

18).Stainless steel legs with screw assembly to adjust leg height.

The layout depends on the winery, with custom options for dimensions, number/size of wine fermenters, positioning, etc.

5000L wine fermenters

4.Customization of Stainless Steel Wine Fermenters

Stainless steel wine fermenters can be customized in terms of:

  • Capacity – from 100L to 30000L
  • Dimension ratios – height, width, depth
  • Shape – conical, sloped or tapered wine fermenter
  • Number and types of valves
  • Cooling system – glycol, refrigeration, chilled water
  • Temperature sensors and automated controls
  • Access hatches, doors, ladders
  • Mobility options – fixed, casters, fork lift guides
  • External sight glasses, light tubes

5.Installation, Operation and Maintenance of Stainless Steel Wine Fermenters
Installing, operating, and maintaining stainless steel wine fermenters properly is crucial for ensuring the quality of your wine and the longevity of your equipment. Here’s a guide to help you navigate these aspects effectively:


1)Site Preparation: Choose a location for your fermenters that is well-ventilated, easily accessible for cleaning and maintenance, and equipped with necessary utilities such as water and electricity.

2)Leveling: Ensure that the surface where the fermenter will be placed is level to prevent any issues with stability or drainage.

3)Utilities Connection: Connect the fermenter to necessary utilities such as water for cooling jackets (if applicable) and electricity for temperature control systems or agitators.and electricity for temperature control systems or agitators.

4)Safety Considerations: Install any safety features such as guardrails or safety switches to prevent accidents during operation.


1)Sanitization: Before each use, thoroughly clean and sanitize the fermenter to eliminate any potential contaminants that could affect the wine quality.

2)Filling: Transfer the grape must or juice into the fermenter, ensuring that it does not exceed the recommended capacity to allow for fermentation activity.

3)Temperature Control: Monitor and control the temperature of the fermenting wine using built-in cooling jackets or external temperature control systems. Maintain the desired temperature range for the specific wine style and yeast strain being used.

4)Fermentation Management: Monitor the progress of fermentation regularly, taking measurements of sugar levels, temperature, and other relevant parameters. Perform punch-downs or pump-overs as needed to ensure proper extraction of color and flavor compounds.

5)Sampling and Analysis: Take regular samples of the fermenting wine for analysis, including pH, acidity, and aroma/flavor development. Use this information to adjust winemaking techniques as necessary to achieve desired outcomes.


1)Cleaning: After each use, clean the fermenter thoroughly using appropriate cleaning agents and techniques. Pay special attention to any hard-to-reach areas where residues may accumulate.

2)Sanitization: Follow up the cleaning process with sanitization to ensure that the fermenter is free from any microbial contamination before the next use.

3)Inspection: Regularly inspect the fermenter for signs of wear, damage, or corrosion. Address any issues promptly to prevent further damage and maintain equipment integrity.

4)Component Maintenance: Maintain any components such as valves, seals, and agitators according to the manufacturer’s recommendations. Replace worn or damaged parts as needed to ensure proper functionality.

5)Documentation: Keep detailed records of maintenance activities, including cleaning schedules, repairs, and inspections. This helps ensure compliance with regulatory requirements and provides a reference for future maintenance needs.

By following these guidelines for installation, operation, and maintenance, you can maximize the performance and lifespan of your stainless steel wine fermenters while producing high-quality wines consistently.

6000L tapered cnonical wine fermenter

6.How to Choose a Stainless Steel Wine Fermenter Supplier

  • Experience in winery equipment manufacturing
  • Offer full customization capabilities
  • Have suitable production capacity
  • Provide product specifications and certifications
  • Offer installation, operation, maintenance support
  • Have proven track record with client testimonials
  • Offer competitive pricing for required customization
  • Have good client communication and project management


Q:What are the benefits of using stainless steel fermenters?

A: Stainless steel fermenters offer durability, ease of cleaning, temperature control, and non-reactivity with wine, ensuring the preservation of wine quality.

Q: What sizes are available for stainless steel wine fermenters?

A:Stainless steel fermenters come in various sizes, from small ones suitable for home winemaking to large tanks used in commercial wineries. The size depends on the scale of production and winemaker’s needs.

Q: What temperature control system is best?

A: Glycol and refrigeration cooling systems provide the most precise temperature control. Evaluate options based on control needs and budget.

Q:Can stainless steel fermenters be used for both red and white wines?

A:Yes, stainless steel fermenters are versatile and can be used for fermenting both red and white wines. They allow for precise temperature control and are easy to clean between batches.

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