Topic: Brewing Science

Understanding the Science Behind Beer Foam

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Beer foam: It’s more than just a layer at the top of your glass, it’s a complex matrix of air and chemistry that is highly dependent upon the brewing process. Explore the science of the suds with John Palmer.


Behind the IBU

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What is an IBU? It’s a simple question — wait until you hear the answer.


The Science of Step Mashing

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A single infusion mash is best for fully-modified malts — but when it comes to undermodified malts, you need to step it up.


Can oats in homebrew lower my cholestrol?

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  I’ve been writing this column for 12 years now and am always surprised by the creativity of homebrewers, especially when it comes to redefining the daily role of beer in one’s


How does silicone affect beer foam?

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  The professor you are working for is correct to state that some brewers use anti-foams and it is also true that these compounds are silicon-based. Dimethylpolysiloxane, in the form of a


How does tyramine in beer affect people taking MAOI?

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  I have answered many questions over the years that deal with medical and health topics. The way I go about answering these questions is reading what I can find about these


The Principles of pH

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What (exactly) is pH and what can – or should – a homebrewer do about it? You may not know much about it (and depending on your water and the beers you brew, you may not need to), but pH affects many major aspects of beer character. Learn the simple steps to manage pH in your homebrews.


Water Chemistry: Tips from the Pros

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Are your ideas about water chemistry all wet? Let Greg Noonan (Vermont Pub & Brewery), Keith Villa (Blue Moon/Coors) and Kraig Bridgeford (Butte Creek) give a cut and dried explanation.


Brewing Experiments

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Learn how to replace the hot air of opinion with the cold, hard facts of science — by conducting an experiment. Put your favorite homebrew argument to rest with an appropriate test.


Fermentability

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Your beer’s final gravity is determined by the fermentability of the wort and the action of the yeast. Find out how to control these factors in your homebrews.


Balanced Recipe Formulation

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Tired of brewing other people’s recipes? Learn the basics of recipe formulations, from making an ingredient list to choosing the right techniques. We’ll cover what you need and how to go about it, with discussions of all major brewing ingredients and what they add to beer. Plus, discussions of balance, complexity, harshness in dark grains, grains for body and cohumulone in hops. Plus: a recipe for "copper ale"


Calculating Alcohol Content, Attenuation, Extract, and Calories

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Learn how to calculate measures of extract, real and apparent attentuation, alcohol content and how many calories are in your beer.


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