professional beer brewing equipment

Stainless Steel Conical Fermenters

The Allure of Stainless Steel Conical Fermenters

Imagine crafting the perfect batch of beer, one that boasts exceptional clarity, vibrant flavor, and a delightful absence of sediment. This dream becomes reality with stainless steel conical fermenters, the gold standard equipment for homebrewers seeking professional-grade results.

Stainless Steel Conical Fermenters

Stainless steel conical fermenters, also known as conical tanks or unitanks, are vessels specifically designed to optimize the fermentation process for beer, cider, wine, and other beverages. These fermenters feature a distinctive cone-shaped bottom that facilitates the collection of yeast sediment, leading to clearer and more consistent brews. Constructed from durable, sanitary stainless steel, conical fermenters offer a multitude of advantages over traditional glass carboys or plastic buckets.

A Guide to Stainless Steel Conical Fermenters

Choosing the right conical fermenter for your needs requires careful consideration of several factors. Here’s a breakdown of the key features to explore:

  • Capacity: Conical fermenters come in a variety of sizes, typically ranging from 3.5 gallons to well over 100 gallons. Homebrewers typically opt for fermenters in the 5-gallon to 15-gallon range, catering to standard batch sizes.
  • Space Considerations: Conical fermenters generally have a larger footprint compared to carboys due to their wider cylindrical body and cone. Measure your brewing space to ensure you have adequate room for the fermenter, including headroom for hoses and attachments.
  • Design and Layout: Many conical fermenters feature a tri-clamp port system, offering easy connection to accessories like sampling ports, dry hopping ports, and carbonation stones. Look for a design that aligns with your brewing preferences and desired level of expandability.
  • Customization: Certain conical fermenters offer customization options, such as integrated jackets for temperature control or pressure capabilities for advanced fermentation techniques. Consider your future brewing aspirations when evaluating customization options.

Capacity, Space, Design, and Customization Options

Capacity3.5 gallons – 100+ gallons
Space ConsiderationsLarger footprint than carboys
Design and LayoutMay include tri-clamp ports
CustomizationIntegrated jackets, pressure capabilities (optional)

Supplier and Price Range

The cost of a stainless steel conical fermenter varies depending on size, features, and brand. Here’s a general price range to provide a starting point for your research:

CapacityPrice Range
3.5 gallons – 7.5 gallons$150 – $400
10 gallons – 15 gallons$400 – $800
20 gallons and above$800+

Top-Tier Suppliers:

Several reputable vendors offer high-quality stainless steel conical fermenters. Here are a few prominent names:

  • Ss BrewTech
  • Spike Brewing
  • Blichmann Engineering
  • Anvil Brewing Equipment
  • Grainfather

Installation, Operation, and Maintenance

Proper installation, operation, and maintenance are crucial for maximizing the lifespan and performance of your conical fermenter. Here’s a quick overview:

InstallationEnsure the fermenter is placed on a level, stable surface. Follow manufacturer instructions for any specific assembly steps.
OperationFamiliarize yourself with the operation of valves, ports, and other features. Sanitize the fermenter thoroughly before each use.
MaintenanceRegularly clean and sanitize the fermenter according to the manufacturer’s recommendations. Inspect for any signs of wear or damage.

Choosing the Right Supplier

With a plethora of options available, selecting the ideal conical fermenter supplier can feel overwhelming. Here are some key considerations to guide you:

ReputationResearch the supplier’s reputation for quality, customer service, and warranty policies.
SelectionChoose a supplier offering a variety of sizes and features to meet your brewing needs.
ExpandabilityConsider if the supplier offers accessories or future upgrades that might be of interest.
Customer SupportOpt for a supplier with readily available and knowledgeable customer support.

Pros and Cons of Stainless Steel Conical Fermenters


  • Superior clarity: The conical design facilitates yeast sediment collection, resulting in clearer beer.
  • Improved efficiency: Easier transfer
  • Easier transfer of clear beer: The bottom-mounted valve allows for easier extraction of yeast sediment without disturbing the clear beer above.
  • Reduced risk of off-flavors: Efficient separation of yeast sediment minimizes the beer’s exposure to potential off-flavors produced by autolysis (yeast death and breakdown).
  • Versatility: Conical fermenters can be used for various fermentation processes beyond beer, including cider, wine, and mead.
  • Durability: Stainless steel construction ensures longevity and resistance to corrosion.
  • Professional aesthetic: The sleek design of conical fermenters adds a touch of sophistication to your home brewery.


  • Higher cost: Stainless steel conical fermenters are more expensive than traditional carboys or plastic buckets.
  • Larger footprint: The conical design requires more space compared to carboys.
  • Steeper learning curve: Operating a conical fermenter may involve more complex procedures compared to simpler fermenters.
  • Potential for sanitation challenges: Tri-clamp ports and other fittings require proper cleaning and sanitization to prevent contamination.

Choosing Between Glass Carboys, Plastic Buckets, and Stainless Steel Conical Fermenters

While stainless steel conical fermenters offer numerous advantages, they aren’t the only option for homebrewers. Here’s a quick comparison to help you decide:

FeatureGlass CarboysPlastic BucketsStainless Steel Conical Fermenters
Ease of UseSimpleSimpleMore complex
DurabilityFragileModerateVery durable
Space RequirementsCompactCompactLarger footprint
Yeast Sediment CollectionLimitedModerateExcellent

Ultimately, the ideal fermenter choice depends on your budget, brewing experience, and desired level of clarity and efficiency. Glass carboys are a good starting point for beginners due to their affordability and simplicity. Plastic buckets offer a step up in durability but may impart slight flavors or odors to the beer. Stainless steel conical fermenters represent the pinnacle of homebrew fermentation, providing professional-grade results for experienced brewers seeking exceptional clarity and efficiency.

The Brewing Process with Stainless Steel Conical Fermenters

The brewing process with stainless steel conical fermenters follows the general principles of homebrewing but with some added nuances:

  1. Wort Transfer: After wort (unfermented beer) is boiled and cooled, it’s transferred from the brew kettle to the sanitized conical fermenter.
  2. Pitching Yeast: Yeast is introduced into the wort to initiate fermentation.
  3. Fermentation: During fermentation, yeast consumes the wort’s sugars and produces alcohol and carbon dioxide. The conical design allows the yeast sediment to settle in the cone as fermentation progresses.
  4. Dry Hopping (Optional): Some styles of beer benefit from dry hopping, where hops are added during late fermentation for additional aroma and flavor. Conical fermenters often have dedicated dry hopping ports for this purpose.
  5. Cold Crashing (Optional): Lowering the fermentation temperature near the end can help further clarify the beer by flocculating (clumping) remaining yeast particles.
  6. Transferring to a Keg or Bottling: Once fermentation is complete, the clear beer is carefully transferred from the conical fermenter to a keg for carbonation and serving or to bottles for long-term storage. The bottom valve on the cone allows for easy extraction of the beer without disturbing the sediment.

Key Considerations for the Brewing Process

  • Sampling: Many conical fermenters feature sampling ports that allow you to extract small volumes of beer to monitor fermentation progress without compromising the sterility of the main vessel.
  • Temperature Control: Some conical fermenters are equipped with jackets for temperature control, enabling brewers to precisely regulate fermentation temperatures for optimal results.
  • Pressure Capabilities: Certain advanced conical fermenters can handle pressure, allowing for techniques like closed-transfer fermentation and carbonation within the fermenter itself.

Brewing Process with Stainless Steel Conical Fermenters

Wort TransferTransfer cooled wort from brew kettle to sanitized fermenter.
Pitching YeastIntroduce yeast to wort to initiate fermentation.
FermentationYeast consumes sugars, producing alcohol and CO2. Sediment settles in cone.
Dry Hopping (Optional)Add hops during late fermentation for aroma and flavor (through dedicated port if available).
Cold Crashing (Optional)Lower fermentation temperature to further clarify beer by clumping remaining yeast particles;Transferring to a Keg or Bottling: Carefully transfer clear beer from fermenter to a keg for carbonation and serving or to bottles for storage. Bottom valve allows for easy extraction without disturbing sediment.


Q: How much headspace is needed in a conical fermenter?

A: Allow for sufficient headspace to accommodate foaming and krausen (yeast head) during fermentation. Typically, aim for 10-20% headspace in your conical fermenter.

Q: Do I need a blowoff tube with a conical fermenter?

A: While conical fermenters are designed to minimize headspace and pressure buildup, a blowoff tube can be a useful safeguard during the most active fermentation stages, particularly for high-gravity beers or styles prone to vigorous fermentation.

Q: How do I clean and sanitize my conical fermenter?

A: Thorough cleaning and sanitization are crucial to prevent contamination in your conical fermenter. Follow the manufacturer’s instructions for specific cleaning procedures. Generally, this involves using a hot caustic solution followed by a sanitizer rinse.

Q: What are some common challenges with conical fermenters?

A: Common challenges include:

  • Learning curve: Operating a conical fermenter may involve more complex procedures compared to simpler fermenters. Familiarize yourself with the operation and cleaning protocols before using your conical fermenter for the first time.
  • Sanitation: Tri-clamp ports and other fittings require proper cleaning and sanitization to prevent contamination. Meticulous cleaning practices are essential.
  • Cost: Stainless steel conical fermenters represent a significant investment compared to carboys or buckets. Weigh the cost against the benefits to determine if it’s the right choice for you.

Q: Are there any alternatives to stainless steel conical fermenters?

A: Yes, glass carboys and plastic buckets are popular alternatives. Glass carboys offer good clarity but are fragile. Plastic buckets are affordable and durable but may impart slight flavors or odors. Ultimately, the best fermenter choice depends on your budget, experience level, and desired outcome.

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