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Wine and beer differ fundamentally in that the sugar for beer must first be

  • A.Extracted from the skins of the fruit by careful pressing
  • B.Added as refined sugar before the fermentation begins
  • C.Produced by the yeast itself from the alcohol it makes
  • D.Released from starch by enzymes during malting and mashing

Answer: D

Grapes supply fermentable sugar directly, whereas barley stores carbohydrate as starch that yeast cannot use, so malting and mashing exist entirely to convert it. This extra enzymatic stage is the essential difference between the two processes.

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