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Baking powder is the ingredient that helps the dough to rise and is often used in baked goods. Old or expired baking powder won’t have the same chemical reaction as fresh baking powder, and this also means your bread, cookies, or other baked goods may not be as fluffy. Baking powder can stay good for more than a year when stored properly, but if you’re not sure if it’s fresh, you can check before using it in a recipe.
Steps
Check baking powder
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Boil some tap water. Pour tap water into the kettle to the lowest setting. You only need ½ cup (120 ml) of hot water to test the baking powder, but keeping the water to a minimum will help keep the electric kettle from overheating. Turn on the kettle and wait for the water to boil. [1] X Research Source
- Do not heat the water more than necessary to avoid wasting energy.
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Put some baking powder in a bowl. Measure 1 teaspoon (5 g) of baking powder into a heatproof glass bowl or dish. You will be pouring boiling water into the baking powder, so the baking powder bowl should be heat-resistant.
- You can also use this method to test the effectiveness of baking soda. [2] X Research Source
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Measure and pour water into the baking powder. Once the kettle is boiling, pour some boiling water into a ½ cup measuring cup. Slowly pour boiling water from the measuring cup into the baking powder bowl.
- To try baking soda instead of baking powder, mix 1 teaspoon of white vinegar in hot water before pouring it into the baking soda bowl. The acid in the vinegar will react with the baking soda and activate the baking soda if it’s still good. [3] X Research Sources
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Watch the baking powder foam. Good baking powder will foam immediately and sizzle when you pour boiling water in. The sizzling sound indicates that the baking powder is fresh and you can use it as a baking powder.
- The more foam, the fresher the baking powder. [4] X Research Sources
Find ingredients to replace baking powder
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Mix baking powder with cream of tartar. Baking powder is actually baking soda mixed with dry acid, so you can make your own when needed if you don’t have fresh baking powder. To make 1 tablespoon (15 g) of baking powder, you would mix 1 teaspoon (5g) of baking soda with 2 teaspoons (7 g) of cream of tartar.
- For a large amount of baking powder, mix baking soda with cream of tartar in a ratio of 1:2 and store the excess in an airtight container. [5] X Research Sources
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Combine baking soda with buttermilk. Another acid you can use to turn baking soda into baking powder is buttermilk. Mix ½ teaspoon (2g) of baking soda with ½ cup (120 ml) of buttermilk. [6] X Research Source This baking powder substitute works best when the recipe also includes buttermilk, such as:
- Pancake
- Muffins
- Cookies
- Waffles
- Bread
- Donuts
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Mix baking soda with lemon juice or vinegar. Both lemon juice and vinegar contain acids that help activate the baking soda and turn it into baking powder. To make this substitute, you’ll mix ¼ teaspoon (1 g) of baking soda with 1 teaspoon (5 ml)) of lemon juice or vinegar. The resulting mixture will be 1 teaspoon (5g) of baking powder. [7] X Research Sources
- When making baking powder with a liquid mixed with baking soda, you need to reduce an equal amount of the other liquid in the recipe. For example, if you make 2 teaspoons of baking powder with lemon juice and baking soda, reduce 2 teaspoons of milk in the recipe. [8] X Research Sources
Preserving baking powder
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Store baking powder in an airtight container. When stored properly, baking powder will remain good for 18 months or longer. One of the most important factors is to store baking powder in a tightly closed container, preventing oxygen from entering. Good types of containers include:
- Mason jar
- Glass or plastic containers with tight-fitting lids
- Small metal or ceramic containers with tight-fitting lids
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Increase the shelf life of baking powder by storing it in a dry place. When damp, baking powder will clump and be less effective. Dry places where you can store baking powder to increase its shelf life include kitchen cabinets, cupboards, or areas that are not humid. Do not store baking powder in damp basements, under sinks, or areas prone to spills or leaks.
- The moisture in the air contains water, yeast and other elements, and all of these factors change the chemical structure of the baking powder. Over time, the bud becomes unusable if it is exposed to moisture.
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Store baking powder in a cool place. Another way to extend the shelf life of baking powder is to store it away from heat sources. [9] X Research Source High heat can trigger baking powder, especially if it is not kept in a dry place properly. The cupboard away from the stove is the perfect place to store baking powder.
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This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
There are 8 references cited in this article that you can see at the bottom of the page.
This article has been viewed 3,588 times.
Baking powder is the ingredient that helps the dough to rise and is often used in baked goods. Old or expired baking powder won’t have the same chemical reaction as fresh baking powder, and this also means your bread, cookies, or other baked goods may not be as fluffy. Baking powder can stay good for more than a year when stored properly, but if you’re not sure if it’s fresh, you can check before using it in a recipe.
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