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  • December 21, 2023 7 min read

    Pros and Cons of Stainless Conical Unitank Fermenters for Homebrewing

    Pros and Cons of Stainless Conical Unitank Fermenters for Homebrewing


    Upgrading your brewing equipment can be an exciting but daunting decision, especially when it comes to investing in a stainless conical unitank fermenter. These vessels come with a premium price tag and require meticulous cleaning, but they also offer a range of advanced features that can elevate your homebrewing experience. In this comprehensive guide, we will explore the benefits and drawbacks of stainless conical unitanks, shedding light on whether they are worth the investment and what you need to consider before making the switch.

    Chapter 1: Understanding Stainless Conical Unitanks

    Before diving into the pros and cons, it's crucial to define what stainless conical unitank fermenters are and how they differ from other brewing vessels.

    Stainless conical unitanks are specialized fermenters with a steeply sloped cone design and a bottom dump valve. Unlike their plastic counterparts or stainless bucket fermenters with shallow cones, these pro-grade vessels are primarily constructed from stainless steel and are available to homebrewers.

    Chapter 2: The Pros of Stainless Conical Unitank Fermenters

    Stainless conical unitank fermenters offer a range of advantages that can significantly enhance your brewing process:

    1. Brewer Control Over Fermentation

      These fermenters provide brewers with precise control over the fermentation process, allowing for adjustments and fine-tuning. This level of control empowers homebrewers to experiment with different yeast strains, fermentation temperatures, and techniques.

    2. Abundance of Features and Accessories

      Stainless conical unitanks come equipped with various features such as aerations/carbonation stones, pressure gauges, gas posts, blow-off canes, spunding valves, sampling valves, and dry hoppers. These accessories grant brewers unparalleled control and flexibility, enabling them to tailor their equipment to specific brewing goals.

    3. Easy Pressure Transfers

      The pressure-capable design of unitanks enables easy and oxygen-free transfers, ensuring beer quality remains uncompromised. This feature is especially valuable for homebrewers looking to minimize oxygen exposure during the brewing process, leading to cleaner and more flavorful beer.

    4. Fermenting/Dry Hopping Under Pressure

      Unitanks allow for fermentation and dry hopping under pressure, which is advantageous for certain beer styles and flavor profiles. This capability enhances the versatility of homebrewers, allowing them to explore different brewing techniques and experiment with pressure-related effects on beer characteristics.

    5. Carbonate and Ferment in the Same Vessel

      With unitanks, you can carbonate your beer naturally within the same vessel used for fermentation, eliminating the need for additional equipment and simplifying the carbonation process. This convenience streamlines the homebrewing workflow and reduces the reliance on external components.

    6. No Racking or Transferring Required

      You can postpone the need for racking or transferring until you're ready to package your beer, simplifying your brewing process. This delay provides flexibility in scheduling and allows homebrewers to focus on other aspects of their brewing routine.

    7. Trub Dumping and Yeast Harvesting

      Unitanks make it easy to separate and remove trub and harvest yeast post-fermentation, promoting cleaner and more precise brewing. The ability to perform trub dumping and yeast harvesting simplifies the process of improving beer clarity and reusing yeast, contributing to cost savings and sustainability.

    8. Stainless Steel for Cleaning and Sanitation

      Stainless steel is well-suited for cleaning and sanitation, ensuring that your fermenter remains hygienic. This material's resistance to corrosion and ease of cleaning simplifies the maintenance of your equipment, providing peace of mind regarding the cleanliness of your brewing vessels.

    Chapter 3: The Cons of Stainless Conical Unitank Fermenters

    While stainless conical unitank fermenters offer numerous benefits, they also come with a set of drawbacks that homebrewers should consider:

    1. Learning Curve

      Transitioning to unitank fermentation may require some learning and adaptation, particularly if you're accustomed to simpler brewing vessels. The initial setup, including the configuration of accessories and pressure management, may present challenges for those new to this equipment. However, the learning curve can be overcome with research, practice, and guidance from experienced brewers.

    2. High Cost

      The initial investment in a stainless conical unitank can be substantial, making it one of the most expensive pieces of equipment for homebrewers. The upfront cost can be a significant factor for brewers on a budget or those who are hesitant to commit to a high-priced fermenter. However, it's important to weigh this cost against the long-term benefits and enhanced capabilities offered by the unitank.

    3. Complex Cleaning Process

      Unitanks have multiple components and valves that need thorough cleaning and sanitization, potentially adding time to your brewing routine. Cleaning and maintaining a unitank may require more effort compared to simpler fermenters like plastic buckets. However, the use of clean in place (CIP) practices can streamline the cleaning process and minimize the time and labor involved.

    4. Space Requirements

      These fermenters are bulkier and may require larger fermentation chambers or glycol systems to maintain precise fermentation temperatures. Cooling solutions can also be costly, adding to the overall expense of using a unitank. Homebrewers should consider the available space and budget for additional equipment when opting for a unitank.

    Chapter 4: Unitank vs. Conical - Understanding the Difference

    To grasp the full scope of fermenter options, it's essential to differentiate between unitanks and standard conical fermenters. While all unitanks are conical, not all conicals are unitanks.

    Unitanks are conical fermenters that can handle pressures up to 15 PSI. They offer the unique capability to ferment, carbonate, and serve beer from a single vessel. Unitanks are typically the most expensive fermentation vessels available to homebrewers. Unitanks are also the most versatile of all fermenters in due to their unique capabilities.

    Chapter 5: Why Choose a Conical Fermenter?

    The primary advantage of using a conical fermenter, whether standard or unitank, is the ease of separating and dumping trub and harvesting yeast. While there are other benefits, these are the most noticeable advantages for brewers. Trub dumping and yeast harvesting enable extended conditioning without the risk of off-flavors from old or dead yeast, contributing to a more refined final product.

    Conicals also excel in minimizing oxygen exposure during transfers, a crucial factor for preserving beer freshness and flavor. The ability to conduct pressure transfers without oxygen contact simplifies the brewing process, particularly when moving beer from the fermenter to kegs.

    Furthermore, conical fermenters are equipped with sanitary tri-clover fittings, accommodating various accessories and enhancing control. These accessories include aeration/carbonation stones, pressure gauges, gas posts, blow-off canes, spunding valves, sampling valves, and dry hoppers, allowing for a wide range of customization and experimentation.

    Conicals streamline the brewing process by providing better control, precision, and repeatability, especially when equipped with heating and cooling capabilities. This reduces the influence of external variables on the final beer quality.

    Pressure fermentation is another feature of unitanks, enabling the fermentation of beer at warmer ambient temperatures while suppressing ester production. This is particularly beneficial for brewers without access to glycol systems or large refrigeration units. Pressure fermentation also allows for the production of lagers at ale temperatures.

    Chapter 6: Scaling Up

    The choice of fermenter becomes increasingly important when considering scaling up your brewing operation. If you aspire to brew larger batches, typically exceeding 15 gallons, a conical fermenter is often the most practical choice. The capacity of unitanks aligns with the requirements of scaling, making them an essential tool for larger batch sizes. The inability to find larger plastic buckets necessitates the adoption of state-of-the-art vessels for sizable productions.

    Chapter 7: Making the Decision

    Deciding whether to invest in a stainless conical unitank fermenter ultimately hinges on your brewing objectives, preferences, and financial considerations. While these fermenters offer advanced capabilities, they come with associated costs and complexities.

    Your choice should reflect your brewing style and the types of beer you frequently produce. If you prioritize delicate styles like IPAs or demand precise control over oxygen levels and yeast management, a conical fermenter is a valuable asset. However, if you are content with simpler equipment and are mindful of budget constraints, other fermenters may suffice.

    Ultimately, the allure of professional-grade brewing equipment, with its advanced features and capabilities, often entices homebrewers seeking to elevate their craft and replicate the precision of commercial breweries. The decision to invest in a conical fermenter reflects your commitment to the art and science of brewing.

    Bräu Supply’s Unitank Conical Fermenter

    The Bräu Supply Unitank Jacketed Fermenter is a high-quality stainless steel fermenter designed for precision brewing and fermentation. It features a liquid-filled jacket for accurate temperature control, durable 304 stainless steel construction, a working pressure of 15 psi. Key features include precision temperature and robust pressure control, streamlined operation with a 6" or 8" tri-clamp opening, and versatile fermentation control with multiple connection ports. It also offers adjustable leg height and includes a comprehensive fermentation kit. This fermenter is suitable for various batch sizes and is ideal for homebrewers and professionals seeking precision and quality in their brewing process.

    Bräu Supply's Conical Fermenter also incorporates a rotatable racking arm, allowing users to collect the clearest beer possible. The easy-to-clean design and sanitary butterfly valves make the fermentation process convenient and hassle-free. Overall, this unitank conical fermenter offers an excellent balance of functionality and affordability.


    In conclusion, stainless conical unitank fermenters offer a wealth of advantages, including precise control over fermentation, oxygen-free transfers, yeast management, and versatility with accessories. These benefits, however, come at a cost in terms of initial investment, cleaning complexity, and space requirements. When deciding whether to make the switch to a conical fermenter, consider your brewing style, goals, and budget. For brewers passionate about crafting exceptional beer and pursuing the highest level of control, a conical fermenter can be a worthwhile investment in the journey towards brewing excellence. Ultimately, the choice to embrace this advanced brewing equipment is a testament to your dedication to the craft of homebrewing.


    Ready to enhance your brewing experience with top-of-the-line equipment? Look no further than Bräu Supply, the pioneers of the all-in-one brew system, the Unibräu. Our commitment to quality is unmatched, with every product crafted from premium 304 stainless steel and designed with modularity and electric brewing in mind.

    Explore our range of products, including the Unibräu, Unibräu Pro, and HERMS systems, all offering unparalleled efficiency and value. With Unitank fermenters and a vast selection of accessories, we ensure you have everything you need for a perfect brew. Don't settle for less—check out our products and discover the Bräu Supply difference!

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