If you aren't sure whether a brewery is dog-friendly - there's one way to know for sure. Call ahead!
It is much better to get some intel beforehand rather than turn up with your four-legged drinking buddy and be turned away. Many of the online answers to the question of dog policy are incorrect. In many cases, the information online comes from outside sources. Also, rules change, management can change, and it’s best to get news straight from the horses’s mouth when your dog is involved.
If you plan any special additions to your brewery visit like a tour, ask specifically about the dog policy on those excursions.
Most breweries will not be able to accommodate dogs on their tours, so it's always a good idea to double check first before assuming your dog will be able to join you.