BRY-97 American West Coast Yeast was selected from the Siebel Institute Culture Collection and is used by a number of commercial breweries to produce different types of ale. The propagation and drying process have been specifically designed to deliver high quality beer yeast that can be used simply and with reliability to help produce ales of the finest quality. No colours, preservatives or other unnatural substances have been used in its preparation. The yeast is produced in ISO 9002 certified plants. See Technical Data sheet below for more information!