Beer style beer differently. Since sugars are converted to alcohol during the process of fermentation, gravity can be used to estimate the final alcohol. In beer brewing, a distinction is made between the "original gravity", the gravity of the wort before fermentation has begun, and the "final gravity" of the product when fermentation has completed. Since the concentration of sugars is directly proportional to the gravity, the original gravity gives a brewer an idea of the potential alcoholic strength of the final product. After fermentation, the differences between the final and original gravities indicates the amount of sugar converted into alcohol, allowing
Brewing Industry Research Foundation Masson Gulland was killed in a train crash before taking up his position and hence Sir Ian Heilbron (Imperial College London) agreed to become the second Director of Research at the new Brewing Industry Research Foundation (BIRF)in 1949. In 1948 Lyttel Hall, Nutfield in Surrey was purchased and the main Hall was converted into laboratories, the squash court into a pilot brewery and other new buildings were developed as a workshops and conference facilities. In 1951 HRH The Duke of Edinburgh Prince Philip formally opened the site. BIRF later became The Brewing Research Foundation, BRF International, Brewing Research International and