We did not sprinkler. We chose to do a 2 hour firewall in lieu. With sprinklers we would only have to do a 1hr firewall. 2hr wall, with appropriate 2 hr windows and doors are a significant expense, but in our case, sprinklers were not feasible. FYI a tasting room and production area are two different occupancies in many scenarios for several reasons. Hence, the need for fire separation. Also, technically the ttb doesnt allow a tasting room in a DSP, another reason for physical seperation.