Mimi, Cami, Millie, Cam-cam, Cams, Camilleon (like Chameleon) Meaning: Virginal, unblemished character, perfect. Origin: Latin, French. History: In 1969, Camille was the name of a catastrophic hurricane that made landfall on the Mississippi Gulf Coast as a Category 5.
And more than likely, one or both have expired. Baking soda and baking powder lose their effectiveness once they've been sitting around for a long while. Typically both last anywhere from 6 months to 1 year but make sure to check the best used by date on the bottom. With expired baking soda, you can still technically use it for cleaning because it might have some potency left, but it will not be powerful enough to use in baking.
How long does yeast last? Dry yeast is good for 2-4 months beyond its best-by date. That being said, the shelf life of yeast depends on not only the best before date, but also how it is stored. Yeast is a leavening agent containing active enzymes that create CO2 (carbon dioxide) when moistened.