Our Better Homes and Gardens cookbook calls for "1 package active dry yeast" in its pizza recipe, which is less than helpful, since we keep a container of bulk yeast in the freezer. What is the standard volume (e.g. in teaspoons) of yeast in a package?
According to Red Star, a very common yeast brand in the US:
This is approximately 7 grams, or 11 ml.
This is representative of all of the US brands.