How to Brew: Everything You Need to Know to Brew Beer Right the First Time by John J. Palmer

How to Brew: Everything You Need to Know to Brew Beer Right the First Time by John J. Palmer

Author:John J. Palmer [Palmer, John J.]
Language: eng
Format: epub, mobi
Tags: Cooking, Beverages, Beer, Art, General, Technology & Engineering, Food Science
ISBN: 9780937381885
Google: xN5JAAAAYAAJ
Amazon: 0937381888
Publisher: Brewers Publications
Published: 2006-05-17T05:00:00+00:00


Background:

In 1953, German brewing scientist Paulas Kohlbach determined that 3.5 equivalents (Eq) of calcium reacts with malt phytin to release 1 equivalent of hydrogen ions, which can “neutralize” 1 equivalent of water alkalinity. Magnesium, the other water hardness ion, also works hut to a lesser extent, needing 7 equivalents to neutralize 1 equivalent of alkalinity. This chemical reaction does not require enzyme activity or an acid rest. Alkalinity that is not neutralized is termed “residual alkalinity” (abbreviated RA).

On a per volume basis, this can be expressed as:



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