Fermentability ratios, attenuation scores and drinkability
Testing the rule of thumb | The average beer drinker is still usually not familiar with the concept of original gravity or original extract. It is a common rule of thumb though that the ratio of 2½ (original extract, OE divided by the alcohol, as ABV) would be “about right” in most bottled beers. The authors have decided to find out in what way the rule of thumb factor of 2½ holds true and have, during the course of this investigation, discovered links to attenuation and inferred drinkability especially in lager type beers. These concepts were also checked against the portfolio of beers produced by Schilling Beer Co., a craft brewery situated in the northern part of New Hampshire, USA.
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