Heavy Seas Brewery

Heavy Seas seems to have some interesting beers so I decided to email them and ask about their process.

They do have some experimental beers on their 15bbl line, no oyster though. The issue is that their experimental line does share clamps, hoses, etc with their main brewing line. Nothing from the brewpub/restaurant is shared with the brewing facilities.
They have brewed mead using pasteurized honey and occasionally brew with some fruit (mainly for their TropiCannon). Heavy Seas also ages some beer in wine casks, so that depends on how you hold regarding casks. They do not let their equipment sit empty and dry for 24 hours and they did not give me details regarding temperatures for cleaning, which can make kashrut difficult if the keilim ever became non-kosher. They do not share facilities with other breweries which is a plus.

Since they share equipment between their main line and their experimental line, this would require a lot more investigation and possibly a trip to their facility to get more information.

Ask your local Rabbi regarding this beer (and all others on this blog).

EDIT: After contacting the Star-K, they said that Heavy Sea's unflavored beer is acceptable.