OVER 4 MONTHS OLD- STARTER RECOMMENDED! NO GUARANTEE OF VIABILITY AND POUCH MAY BE SWOLLEN. Beer Styles: American Barleywine, Imperial IPA, Imperial Red, Imperial Brown, Imperial Porter, Russian Imperial Stout Profile: This unique blend of strains is designed to ferment higher gravity worts used in producing any style of Imperial beer. The results will be a rich, malty, full bodied beer with notes of citrus & fruity esters. Even with a high starting gravity your Imperials will have a relatively dry finish. Alc. Tolerance 12-14% Flocculation low-medium Attenuation 75-80% Temperature Range 68-75 F (20-24 C) Activator pouch with 100 billion yeast cells.