Whisky Science pp 121-142 | Cite as


  • Gregory H. Miller


Mashing is the process of converting malt to a sugar-rich fermentable liquor or wort. Malt grains are first broken, typically by roller mills or hammer mills, to expedite the interaction of mash water with the modified endosperm. The broken grains, or grist, are mixed with hot water which first softens (gelatinizes) and ultimately liquifies the starch, and which activates enzymes that break the starch into fermentable sugars. At the end of an all-malt barley process, spent grains are separated from the sugary wort by filtering the wort through a filter bed comprised of the barley’s husks.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Gregory H. Miller
    • 1
  1. 1.University of California, Professor of Chemical EngineeringDavisUSA

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