Use to ferment lager beer in one week! Ferment at room temperature (62-68°F) under 1.0 bar (14.7 PSI) until final gravity is obtained, generally in one week. Lager the beer at 35°F, 15 PSI, for 3-5 days, to condition. Sulfur production is strong first 2 days, then disappears by day 5. Do not need to carbonate, since at 1 bar entire time.