We don't have synonyms for draff yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are draft, raff and daff.
(n) :
A byproduct from a grain distillery, often fed to pigs or cattle as part of their ration; often synonymous with brewer's spent grain, sometimes differentiated from it; usually differentiated from potale, at least in technical use, although broad, nontechnical use has often lumped all such byproducts together, especially in the past.
(n) :
A byproduct from a grain distillery, often fed to pigs or cattle as part of their ration; often synonymous with brewer's spent grain, sometimes differentiated from it; usually differentiated from potale, at least in technical use, although broad, nontechnical use has often lumped all such byproducts together, especially in the past.