An 8 barrel (BBL) fermenter is a large fermentation vessel used by commercial craft breweries and microbreweries. With a capacity of 8 barrels or 249 gallons (944 liters), an 8 BBL fermenter allows small to mid-sized breweries to produce batches of beer for distribution and sale.
This guide covers key considerations when investing in an 8 BBL fermentation system from sizing, designs, suppliers, installation and operation. We compare the pros, cons and costs of different 8 BBL fermenter types from stainless steel to plastic conical, as well as customized tiered systems. Read on for advice on choosing the right 8 BBL fermentation equipment for your brewery.
8 BBL Fermenter Equipment Guide
There are several equipment components that make up an 8 BBL fermentation system:
|The primary enclosed tank where fermentation occurs. Available in stainless steel, plastic or wood. Conical and cylindrical shapes.
|Controls fermentation temperature for optimal yeast activity. Cooling jackets, glycol chiller systems or heat exchangers used.
|Mixes yeast and wort. Paddle systems for cylindrical, integrated impellers for conical fermenters.
|Transfers fermented beer out of tank into bright tanks or brite beer tanks.
|Clean-in-place spray balls/heads, pumps and chemicals for automated cleaning.
|Prevents airborne contamination during fermentation. HEPA or sterile air filters used.
|Tracks temperature, density/gravity and fermentation progress. Sensors connected to central computer.
|Includes sight glasses, stands, ladders, pressure relief valves and more.
Types of 8 BBL Fermenter Vessels
There are three main types of fermenter vessels used in 8 BBL commercial brewing systems:
|Most common type made entirely from stainless steel (grade 304 or 316). Durable, easy to clean and customize. Conical or cylinder shape.
|Made from durable food-grade polymer plastic resin. Lightweight, budget friendly. Limited customization available. Conical shape.
|Wooden & Alternative
|Barrels and wood fermentation vessels also used. Porous material imparts flavor. Requires extra cleaning/care. Small niche use.
8 BBL Fermentation Process
The typical fermentation process using an 8 BBL fermenter system involves:
- The fermenter vessel, chiller, and accessories are thoroughly cleaned and sanitized prior to use.
- 8 barrels (249 gallons) of cooled wort is transferred into the fermenter.
- Yeast is added (pitched) to begin the fermentation.
- The fermentation temperature is maintained using the chilling system or jackets. Internal mixing may occur.
- Gravity/density readings are taken throughout the 3-7 day fermentation.
- Once complete, the young beer is transferred (racked) to conditioning tanks.
- The fermenter is cleaned and sanitized for the next use.
Careful control of fermentation parameters like temperature, agitation, pitching rates and yeast health is critical to producing consistent, quality beer. Our 8 BBL fermentation equipment provides the features needed for tightly managed fermentation control.
8 BBL Fermenter Capacities, Designs and Layouts
Commercial 8 BBL fermentation systems are available in different configurations when it comes to capacities, number of vessels, overall dimensions, and layouts.
|8 barrel = 31.5 hectoliters = 249 US gallons = 944 liters. 7.75 and 8.5 BBL sizes also common.
|Number of Vessels
|Single 8 BBL tanks or multiple x 8 BBL for larger volumes and cellaring.
|Varies by brand but ~9 ft tall x 5 ft diameter is typical. Larger diameters for cylindrical tanks.
|Single slim conical tank has small 3-5 ft footprint. Multiple tanks in series/rows require more line space.
|Linear side-by-side line up most common. Stacking/vertical configurations for restricted spaces.
|Fully customizable accessories, ports, finings, and fermentation control systems available.
The layout, vessel dimensions, number, floorspace and ease of operation should be carefully planned when designing a brewery’s fermentation area.
Experienced suppliers can provide CAD drawings/renderings showing proposed equipment configurations based on your facility constraints, production goals and budget. This allows virtual planning of your future fermentation room setup for best results.
8 BBL Fermenter Suppliers & Pricing
There is a wide range of 8 BBL fermenter equipment suppliers across the globe. Prices vary considerably based on features, quality and customization.
|Rolec Craft Brewing
|UK & Europe
|$15,000 to $22,000
|$18,000 to $35,000
|USA & Canada
|$22,000 to $50,000
|Australia & NZ
|$20,000 to $36,000
|$8,000 to $15,000
|$19,000 to $45,000+
|$12,000 to $100,000+*
*Wide price range for Stout reflects customizable features and tiered turnkey systems
In determining the ideal 8 BBL fermenter supplier for your brewery, key factors to consider include:
- Location/shipping costs & import duties
- Budget constraints
- Type of fermenters available (stainless, plastic, hybrid)
- Quality and durability of tanks
- Design customization flexibility
- Turnkey systems vs standalone tanks
- Available fermentation accessories
- Process control automation & monitoring options
- Additional services like installation support, staff training, and after-sales assistance
Get detailed quotes from multiple vendors outlining exactly what is included before committing to purchase 8 BBL fermentation equipment.
8 BBL Fermenter Installation, Operation & Maintenance
Properly installing, cleaning and maintaining an 8 BBL fermentation system ensures maximum production uptime plus clean, consistent beer.
|Performed by equipment supplier and/or brewery engineers. Requires rigging equipment to safely lift in place. Plumbing, wiring, controls setup next.
|Cleaning & Sanitation
|Follow CIP protocols using adequte hot water, chemicals (acid/caustic), filtration. Clean after every fermentation turn.
|Regularly inspect fittings, sensors, cooling lines for issues. Lubricate, replace gaskets/seals periodically.
|Operation & Monitoring
|Use chiller, mixer, racking as needed per recipe. Watch fermentation progress with hydrometer readings 2-3 times daily.
|Note fermentation activity, gravities, taste evaluations and troubleshooting details for data analysis.
Invest in staff safety procedures and training on proper tank CIP methods, fermentation SOPs, sensory evaluation, data logging, and preventative maintenance scheduling to get the most from your 8 BBL tanks.
How To Choose an 8 BBL Fermenter Supplier
Follow these tips when selecting a fermentation equipment vendor:
|Ensure supplier has qualified engineers and support staff with fermentation expertise.
|Prefer well established vendors (5+ yrs) with proven reputation and many prior installs.
|Seek suppliers adept at tailored equipment specification to match brewery goals and constraints.
|Choose turnkey vendors that handle full project management from design to delivery to install and training.
|Speak to current users about their satisfaction working with the company and equipment reliability/longevity.
|Some firms offer to visit onsite if possible to ensure proper sizing recommendations and floorplan integration.
Visiting existing microbreweries using a company’s tanks firsthand provides the best gauge of real-world function and durability. Validate any claims of innovation or unique offerings by the sales representative.
Comparing 8 BBL Fermenter Pros, Cons & Limitations
There are both advantages and drawbacks associated with each type of 8 BBL fermentation system:
|Stainless Steel Conical
|Durable, customizable, efficient conical design
|Expensive, heavy, reduced thermal dynamics vs plastic
|Lower cost, lighter weight for transport / installation, good thermal properties
|Less durable long term, minimal customization, aging effects
|Unique flavors imparted, historical aesthetic
|High maintenance cleaning/replacing, risk of contamination
No fermentation equipment option is perfect across all criteria. Stainless steel conicals offer the best balance but have higher investment costs. Lower cost plastic conicals work well for budget conscious breweries starting out if you can accept the drawbacks above. Specialty wood barrels fill niche applications rather than replacing stainless as a mainstream solution.
Evaluate all advantages and limitations carefully before investing in an 8 BBL fermentation system. On-site trials at operating breweries provide the best way to assess direct hands-on experience with different fermenter types.
Q: What extra floorspace and ceiling height is needed for an 8 BBL fermenter system?
A: Expect to allocate ~25-100 ft2 per conical 8 BBL fermenter tank. Cylindrical tanks need more footprint. Ceiling height should be 12+ feet ideally to accommodate top-mounted components.
Q: Can I stack 8 BBL fermenter tanks vertically?
A: Yes, stacking configurations are definitely possible but require reinforced flooring and platforms rated for the heavy loaded weight. Professional engineering guidance suggested for multi-tier builds.
Q: Is direct steam injection possible during fermentation?
A: Yes, many 8 BBL fermenters allow direct steam injection into the cone for heating if temperature spikes are needed at points in the fermentation timeline. Approximately 5-10 psi overpressure is created depending on the injection rate so the fermenter must have adequate PRV sizing and pressure rating. The direct steam method generates turbulence so forced mixing with paddles or impellers should be turned off during injection cycles. Use a steam PRV and condenser to manage pressure spikes on the fermenter side. Sterile filtration of the steam is critical for food safety.
Q: How many turns or batches can you achieve per week with a single 8 BBL fermenter?
A: Assuming a 5 day average fermentation, you can achieve approximately 1.4 turns per week with one 8 BBL vessel. To get 3+ turns weekly requires multiple 8 BBL tanks. The fermentation duration impacts turns as does the efficiency of cleaning and sanitation protocols between cycles.
Q: What are the power requirements to operate an 8 BBL glycol chiller system?
A: An 8 BBL fermenter’s glycol chiller cooling system typically requires single phase 15 Amp at 208V ( North America) or 220V (global). This powers the chiller compressor, glycol pump and control panel. Larger 3 phase chillers are an option for very high peak cooling loads. Electrical requirements also depend on auxiliary equipment like CIP pumps. Always confirm power specs with your equipment supplier.