Red Star Platinum is a premium instant yeast blended with dough
improvers commonly used by professional bakers that will make your
dough so forgiving that you will never be intimidated by yeast again!
They have a NEW Platinum Instant Sourdough that adds a real sourdough
culture - and real sourdough flavor - to any yeast bread.
Platinum Instant Sourdough is not meant to be used in place of a
sourdough starter.
Simply substitute one packet of Platinum Instant Sourdough for one 1/4
oz. packet of any dry yeast in any recipe. Use in any of your
favorite yeast recipes to Sourdough It Up!
You can find it at your local market ... if they don't carry it ask
them to carry it or order directly from Red Star. This was suggested
by Red Star Yeast Co