What truly separates a professional brewing vessel from a simple stainless steel container? The answer lies in the surface.Welcome to a detailed look at the CASSMAN tank polishing and passivation process—a critical, multi-stage procedure that defines the quality, cleanability, and longevity of every fermenter and brite tank we build. This isn't just about aesthetics; it's about microbial security.Why Surface Finish is Everything:A microscopically smooth interior surface is your first line of defense against spoilage organisms. In this video, we demonstrate how we achieve a sanitary finish that protects your beer and your reputation:The Art of Mechanical Polishing: Witness our skilled technicians meticulously polishing every inch of the tank's interior. We showcase the process of achieving a mirror-like finish with a surface roughness (Ra) of ≤0.4μm, far exceeding basic standards. A lower Ra value means fewer microscopic peaks and valleys for bacteria and beerstone to hide in.The Science of Passivation: Polishing is only half the story. We then show the crucial chemical passivation step. This process removes any free iron from the surface and rebuilds a robust, passive layer of chromium oxide—the true protective shield of stainless steel against corrosion and chemical attack.Sanitary Welds, Seamless Finish: The video also focuses on how we grind and polish our interior welds to be perfectly flush and smooth with the parent material, eliminating any potential harborage points for microbes.The CASSMAN Finish Delivers Tangible Benefits:Easier, Faster, & More Effective Cleaning: A smoother surface reduces cleaning time, saves on chemical usage, and provides greater certainty in your CIP cycles.Enhanced Beer Quality & Stability: By minimizing microbial risk and preventing metallic off-flavors, our tanks provide a neutral, stable environment for your beer.Superior Longevity: A properly passivated tank resists corrosion and pitting, ensuring your investment lasts for decades.A Reflection of Your Brand: The flawless finish of a CASSMAN tank is a visible testament to your own commitment to quality.This process is a core part of the "CASSMAN Difference." It's a non-negotiable standard built into every tank because we believe your peace of mind is as important as the quality of your beer.

Tired of endless beer transfers? Worried about oxygen pickup spoiling your perfect batch? It's time to embrace a smarter workflow. The CASSMAN 10bbl Unitank is more than just a fermenter; it's a complete fermentation, conditioning, and carbonation vessel designed to save you time, space, and ultimately, help you produce better beer.The Power of One: Ferment, Crash, Carb, & ServeThe unitank philosophy is simple: minimize beer movement to maximize quality and efficiency. By performing all post-boil, pre-packaging steps in a single vessel, you gain significant advantages:Improve Beer Quality: Dramatically reduce the risk of dissolved oxygen (DO) pickup that occurs during transfers, preserving delicate hop aromas and extending shelf stability.Save Valuable Time & Labor: Eliminate the entire process of transferring from a fermenter to a brite tank. Less cleaning, less sanitizing, less manual work for your brew team.Maximize Your Floor Space: One tank does the job of two. This allows you to fit more production capacity into your existing footprint—a crucial advantage for growing breweries.Ultimate Flexibility: Use it as a traditional fermenter, a brite tank, or the all-in-one powerhouse it's designed to be.A Tour of a Brewer's Best Friend:Join us as we explore the professional features engineered into every CASSMAN 10bbl Unitank:Precision Temperature Control: See the high-efficiency, dimpled glycol jacketing that provides precise control over your fermentation profile and allows for rapid crash cooling.Designed for Clarity & Yield: We highlight the rotating racking arm, allowing you to draw clear beer off the yeast cake, and the conical bottom, ensuring optimal yeast flocculation and harvesting.Ready for Carbonation: This unitank comes standard with a carbonation stone, enabling you to carbonate your beer to the perfect level, all in the same tank.Superior Construction & Sanitation: From the sanitary interior polish and TIG welds to the easy-to-clean CIP (Clean-in-Place) arm and spray ball, every detail is built for professional use, ensuring microbial stability.Is the 10bbl Unitank the Right Fit for You?This workhorse tank is the backbone of successful breweries, including:Ambitious Brewpubs wanting to streamline operations and ensure taproom freshness.Production Breweries focused on optimizing their cellar workflow and protecting their packaged product.Startups building a flexible, efficient, and space-conscious brewery from day one.Stop moving your beer. Start selling it.Invest in a CASSMAN 10bbl Unitank and unlock a more efficient, profitable, and higher-quality cellar operation.