So it has flexibility, unlike traditional lauter tuns. Depending on the size of the mash, he can add or remove plates from the filter. There are a few other points that Lee brought up. And the spent grain going to Kindred Spirit’s local farmer looked extremely dry. Efficiencies for mash filters typically run in percentages from mid-to-high 90s. By squeezing the mash, less water is left behind in the mash, and more wort is extracted to the kettle. Sparge water is added as well, similar to traditional lauter tun brewing. Water is pumped into the bladders at high pressure, thus squeezing the mash. Every other chamber on the mash filter has been fitted with a bladder. After a short recirculation (Vorlauf), the wort is run-off from the filter to the kettle. Using compressed air, the filter is pushed closed and the mash is pumped from the mash mixer to the mash filter. In many ways, the mash filter looks a lot like a plate and frame filter. So why use a mash filter and not the more traditional lauter tun? In the words of Kindred Spirit Brewing’s Head Brewer Lee Lonnes – “less malt, less water and more yield.” And therefore, less environmental impact. While the wort is being run-off into the kettle, hot water is gently added to the grain bed to extract as much of the sugars from the grain as possible, thus increasing the yield in the kettle. This draining process is preceded by a gentle recirculating of the wort back into the lauter tun, helping to clarify the wort by using the grain bed as a natural filter. The lauter tun is simply a vessel designed with a false bottom so that the sweet wort can be drained to the kettle while leaving the grain behind. Some breweries have a combined mash mixer/lauter tun to save space. This process most commonly is done in a lauter tun. Lautering is simply the process of separating the sweet wort from the mash. To understand how a mash filter works, we need to understand lautering. What is it and why am I seeing more and more of them? And finally, close to home, at the newly opened Kindred Spirit Brewing – another one. On a visit to Nashville Brew Works in Tennessee, there it was once more. What was that device attached to the brewhouse? Then I saw it again in Washington, DC, at Hellbender Brewing Company. It first started when I visited Calvert Brewing Company in Maryland. You will investigate how malt, hops, yeast, and water impact the aroma and flavor of your beer then determine how to achieve your desired recipe and style.įamiliarity with high school-level chemistry, advanced high school-level algebra, and basic calculations will help you be successful in this program.Īfter completing this program, you will be well equipped with the expertise and tools to develop, brew, and refine craft beer.Kindred Spirit Brewing’s Head Brewer, Lee Lonnes, with mash filter. This in-depth look at each ingredient includes the chemistry and calculations needed to determine the best combination and ratios of ingredients for brewing. Throughout this program, you will have the opportunity to walk through a hands-on exploration of the four main ingredients used in beer production and their impact on the final product. Whether you’re looking to enter this growing field or are a home brewer, this certificate program will give you the skills you need to create and refine your own beer recipe. The craft brewing industry provides more than 150,000 jobs in the United States alone and has been rapidly expanding for several years now.
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