Outdoor Fermenter

At Paul Mueller Company we understand your company's unique needs and are constantly working to satisfy them. This is why we offer our custom built outdoor fermenter. There is no longer a need to confine your commercial brewing equipment to the size of your facility. With this fermenter's custom features and flexible sizing, the sky is truly the limit.



  • Outdoor design with safety, security, and weather protections
  • ASME Code pressure rating
  • SIP temperature rating
  • Custom geometry to fit your process & space
  • Custom cooling designs with zoned control
  • Insulation designed for your installation and process
  • Fully welded stainless steel outer sheathing
  • Ladder and catwalk systems
  • Skirt or leg mounted designs
  • Connecting hallways and pipe chases to link skirted tanks to each other and to buildings
  • Heat trace on piping to avoid freezing

Finish Options:

  • # 4 Polished Interior Finish
  • # 4 Polished Exterior Finish
  • Electropolish Interior

Tank Trim:

  • Pressure & Vacuum Relief Valves
  • Static, Rotary, or Impingement Cleaning Devices
  • Process & Sample Valves
  • Pressure & Temperature Transmitters and Gauges
  • Top Plates

Specifications and Sizing

Work with our innovative engineers to create a fermenter that is perfect for you and your facility. At Paul Mueller Company we collaborate with you to meet all your needs. With customized geometry and specifications we are confident that we will be able to make a high quality product that you will love.


Finding the right brewing equipment that fits within your budget can be daunting. At Paul Mueller Company, we understand your needs. That’s why we offer Leasing options on equipment at just about every stage of brewing, giving you more flexibility.

Tell us more about your needs.

Our Brewing Partners

Whether we are building a duplicate production facility for a heritage beer label or helping a small community craft brewery positively affect the economy, we are proud to work with these outstanding beer brands as they grow their business.