WILD WEST FRONTIER SOURDOUGH STARTER, old yeast, VERY STRONG, extra sour . We are making a market here . Over time we will be adding an alaskan sourdough yeast and a San Francisco sourdough yeast, both of which have a long history and have been cultivated to stay in their original form. This starter has been aquired from an old timer in the sierra's of the foothills in california. We were lucky to get this one, and you will be also. It is very active and extra sour. A proven winner!!! OLD Bill said he has won many blue ribbons for this one, and he says it has been past down from generation to generation. Now maybe he was telling me a fib or two, but this starter is a gun slinger and makes lots of gas, which means big holes. We also include recipes for the perfect loaf, pizza dough, bread rolls and lots of help. Have fun with our starters and enjoy Instructions are included to activate our starter, in fact it's so simple here they are: Mix 1/2 cup all purpose flour, 1/2 cup lukewarm pure water, package of starter powder in a plastic bowl Cover bowl and put on the counter On the second day just stir it up. On the third day add an additional 1/2 cup all purpose flour and 1/2 cup of lukewarm water By 48 hours you should see bubbles On the fourth day add 1/2 cup lukewarm water and 1/2 cup all purpose flour Feeding your starter daily for about 5 days will help it reach full activity and flavor. AND now its ready to bake with, use our recipes, use your own, its all good. Our item is vacuum sealed and has an expiration date of 12/30/2035