Brewery is producing around ~ 0.12 BEER daily. All depends from event wallet holdings. Players organize BEERFEST with 5 BEER for some boosts, and BEER is circulating players -> game -> players.

1% of the wallet is distributed daily to Brewery owners.
https://hive-engine.com/?p=balances&a=dcityevent
3400 BEER, 1% = 34, then shared between all Breweries in game on daily basis. There is also technology card increasing shares in this pool.