The Most Gluggable Czech Dark Lager Leave a Comment on The Most Gluggable Czech Dark Lager Mash at 152°F (67°C) for 60 min. Mash out, then fly sparge for about 60 min. Ferment at 54°F (12°C) for about 2 weeks. Lager. The post The Most Gluggable Czech Dark Lager appeared first on American Homebrewers Association. American Homebrewers Association