Fermentis Saflager S-189 is an ideal lager strain for many lager and pilsner beers. It can ferment well within the temperature range of 48-72° F, but is ideally fermented between the tighter range of 53-59° F. Highly flocculant, this yeast falls out of suspension easy resulting in brilliantly clear beer. A great choice as a very tolerant strain that makes great lagers.