pack dry yeast
Dry yeast is a source of B vitamins (thiamine, riboflavin, niacin) and contains some minerals including selenium and chromium, though quantities are negligible in typical baking applications.
About
Dry yeast is a dormant form of Saccharomyces cerevisiae, a single-celled fungus used for fermentation in baking and brewing. The yeast cells are cultivated, then harvested and dried to remove approximately 92-95% of their water content, leaving granules or pellets that retain viability for months to years when stored in cool, dry conditions. The resulting product contains living yeast cells in a state of suspended animation that become metabolically active when rehydrated in warm liquid.
Active dry yeast and instant yeast (also called bread machine yeast) are the most common commercial forms, differing primarily in granule size and processing method. Active dry yeast contains larger particles with dead yeast and more residual growth medium, while instant yeast is finer and activates more quickly.
Culinary Uses
Dry yeast is essential in bread baking, where it ferments carbohydrates to produce carbon dioxide gas that leavens dough and develops flavor compounds through enzymatic activity. It is used in both home and commercial bakeries for producing yeasted breads, rolls, pastries, pizza doughs, and bagels. Beyond baking, dry yeast is employed in brewing beer, fermenting mead, and making other fermented beverages. It can be activated by dissolving in warm water before mixing with dough (blooming), or added directly to dry ingredients depending on the yeast type and formula. Proper hydration and temperature management (typically 105-110°F/40-43°C for activation) are critical for consistent fermentation.