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Chemistry of Baking: Can You Make Your Own Baking Powder?

CSEF · 2014 Chemistry

Delayna C. Corts · Willits Charter School, Willits, Mendocino County

Overview

Objectives/Goals My objective is to see if you can make your own baking powder using baking soda and cream of tartar. Methods/Materials Materials used are muffin pans, measuring cups, timer, kitchen scale, ruler, and muffin ingredients. This includes cornmeal, water, baking powder for control, baking soda and cream of tartar. I made a "control" batch of muffins using baking powder and four batches using different amounts of baking soda and cream of tartar. I want to see which amount of each comes closest to the control batch. Results The third recipe with 1.5 tsp. baking soda and .75 tsp. baking soda was the test batch most similar to the control batch. Conclusions/Discussion Baking powder is a blend of baking soda and cream of tartar. When water is added to the mixture, a reaction causes CO(2) to be trapped in the muffin forming air-pockets which causes the muffin to be less dense. This is an example of acid/base chemistry.

Summary statement

Baking powder can be made with baking soda and cream of tartar.

Help received

My mother and science teacher helped me proofread.

Competition history

  • CSEF 2014 Chemistry · Entry S0604

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