fermentable

/fərˈmɛntəbəl/
adjective
  1. Capable of undergoing fermentation; able to be broken down by yeast or bacteria into alcohol, acids, or gases.
    • Grapes are highly fermentable because of their natural sugar content.
    • The brewer tested the wort to see if it contained enough fermentable sugars.
    • Some fibers in food are not fermentable and pass through the digestive system unchanged.