Corn? No, not at all. This is malt, that is, germinated and dried grain. Not only beer, but also whiskey is made from such barley malt.

 
Corn? No, not at all. This is malt, that is, germinated and dried grain. Not only beer, but also whiskey is made from such barley malt. - Malt, Corn, Mash, Whiskey

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