When ADI started its online forums, there were several efforts to define 'craft.' They eventually gave up. The only thing you can quantify for legal purposes is 'small producer.' Even the Brewers Association definition above contains a lot of bullshit. Define 'independent.' They exclude ownership by a larger brewer, but take Alltech Bluegrass Brewing. They're a small brewery owned by a billion dollar corporation. The parent company just doesn't happen to be in the beverage business.