| By the late 19th century baking powder had replaced yeast entirely as a leavener for cakes. |
| Animal fat, or lard, which has a high smoking point, is very effective as a leavener in flaky pastries and tart shells. |
| Baking soda is a leavener that requires an acidic ingredient in a batter to help a baked good rise. |
| An ad for baking powder in a local 1916 newspaper meant he could use that as a leavener, a welcome alternative to drafting pearl ash from a campfire. |
