Scotch Malt Whisky Distillers Malted Barley Specifications. Twenty Years of Fermentable Extract and Predicted Spirit Yield

Some maltsters and distillers have now used the Recommended Methods of Analysis for Malt Extract and Unboiled Wort Fermentability as a basis for trade for twenty years (1979–1998). As in the first decade of use, there have been ongoing changes in laboratory analysis, barley varieties and production scale processes in the second decade. The opportunity to study effects of such changes on the validity of the analytical methods and predicted spirit yield calculations in the second decade has been taken, as has a study spanning the twenty years. It is concluded that the Recommended Methods, and calculations based on them, are still valid.