#barm__yeast  a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey
  supertype:  #leaven__leavening  a substance used to produce fermentation in dough or a liquid
  subtype:  #yeast_cake__yeastcake  small cake of compressed moist yeast
  subtype:  #brewer's_yeast  yeast used in fermenting beer
  subtype:  #mother.barm  a stringy slimy substance consisting of yeast cells and bacteria; forms during fermentation and is added to cider or wine to produce vinegar

No statement uses or specializes #barm; click here to add one.