Yeast - St Royal (500g)
Yeast is a live culture that is used in baking, cooking, and brewing. But not all types of yeast are created equal. Each type has its own characteristics that suit a certain application. While some types of yeast can be used interchangeably if you tweak the recipe, others are so different that they don't work for all purposes. So it is important when shopping for a particular recipe to make sure you buy the right version.
When making bread and certain baked goods, yeast acts as one of the leavening agents during the fermentation process. "Baker’s yeast" is the general term given to all forms of Saccharomyces cerevisiae used to make bread products. Baker’s yeast is available in several forms such as active dry, fresh (or cake), liquid, and instant.
Before adding to a recipe, this type of yeast requires dissolving in a warm liquid to activate it, unlike instant yeast which is added directly to the recipe ingredients. Active dry yeast should not be exposed to liquids hotter than 110 F (43 C) or else it will kill off the yeast. This yeast is usually sold in 1/4-ounce envelopes or 4-ounce jars (once the jar is open, store in the refrigerator).