Archives for September 2016

Last Day to Pre-Order Book

DSCN3853Today is the last day to pre-order my new book, Home Brew Recipe Bible.  The pre-order price at both Amazon and Barnes and Noble is roughly 10 bucks off the cover price — just $14.52. Tomorrow, September 20th, the book will be officially released and (I presume) the price will go up. Thanks to everyone who has already pre-ordered. Some details of the book are given here.

Managing Tannins as a Beer Character (Part II of II)

375px-Tannic_acid.svgAs mentioned in the first part of this article, there are a few beers that might benefit from just a hint of astringency. Usually, the slight puckering sensation will offset or complement another character in the beer. (And, of course, we all know that noticeable astringency in most beers is going to be unwanted.) There are a couple ways you can get just a hint of astringency in your beer, if you want it.

Tannins are water soluble. They are more soluble in high pH solutions than low. And, like most water soluble molecules, they are more soluble in hot water than cold. Let’s first review what happens when you use continuous sparging with 170 °F (77 °C) water. In other words, if you sparge in the normal way meant to minimize tannin extraction. [Read more…]

Managing Tannins as a Beer Character (Part I of II)


Tannic acid, the molecule that gives its name to the class of polyphenols called tannins.

Tannins are a class of molecules found in plants. At high doses, tannins are unpalatable to animals (including humans) and are most highly concentrated in the parts of plants that need the most protection. Some types of tannins are found in barley seed, and hence are present in malt. Other tannins are found in hops. A small amount of tannins are extracted in the mash and in the boil. Some react with proteins and drop out of the brewing stream, but some do carry over into finished beer — and brewing scientists have found that a beer completely devoid of tannins does not taste right. However, as all brewers know, an excess of tannins leads to a harsh astringency that is unpleasant. So, most brewers strive to minimize the amount of tannins extracted in their beers. [Read more…]