It's done regularly in Europe https://www.automationworld.com/beer-brewing-and-carbon-dioxide-recycling https://www.automationworld.com/beer-brewing-and-carbon

It's done regularly in Europe https://www.automationworld.com/beer-brewing-and-carbon-dioxide-recycling https://www.automationworld.com/beer-brewing-and-carbon-diox... https://books.google.nl/books?id=0os_gIvG_ccC&pg=PA349&lpg=PA349&dq=breweries+collecting+co2&source=bl&ots=W4uGe2Z_ur&sig=VfhsGiPaQsXh7oL19wkFp_u3nxY&hl=en&sa=X&ved=0ahUKEwi4tPKSg5PcAhWNyqQKHc0ODpQQ6AEIggEwDg#v=onepage&q=breweries%20collecting%20co2&f=false https://books.google.nl/books?id=0os_gIvG_ccC&pg=PA349&lpg=P... https://foodandbeverage.pentair.com/en/products/haffmans-co2-recovery https://foodandbeverage.pentair.com/en/products/haffmans-co2...