i've got an idea for a grape crusher but didn't know if it'd work. a local business went under recently and i picked up a bunn coffee grinder for next to nothing thinking id be able to run grapes through it. think it'll work?
Ah nope. You would turn the grape into pulp including the seeds. All you really want is a gentle crack/tear in the skin so the yeast can get in and go to work. You certainly don't want pulverized seeds!