MORE INFORMATION SAF Instant Dried Yeast is a premium baker's yeast that is simple easy to use. Unlike active dry yeast, this baker's yeast does not require hydration prior to use and can be added to all but the driest of doughs. SAF Instant Dried Yeast is more concentrated in live organisms compared to compressed dry yeast offering fermentation power 30 to 40% higher. Yeast is a delicate, single celled organism which catalyses the fermentation process required in bread making. It contributes to the taste of the bread as well as making it expand and rise. This baker's yeast is a high quality, high performance yeast, developed by the world's largest and oldest yeast manufacturer, S. I. Lesaffre, in France. Instant dried yeast often allows for speedy and uniform absorption within the dough. Ingredients: Yeast (saccharomyces cerevisiae), sorbitan monostearate. Sorbitan monostearate is an emulsifier and stabiliser. It is produced from sorbitol and stearic acid. It is a normal fatty acid from vegetable or animal origin. It is included to help the rehydration of the dried yeast.