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Old 05-12-2019, 04:19 PM
brujaja is offline
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Why do my cakes keep coming out flat? (need answer fast)


I am just trying to make simple lazy day cakes -- about the simplest white cake recipe there is.

Butter, sugar, egg, baking powder, salt, flour, milk. I have made them innumerable times before with success. Although my electric mixer broke down recently, I made them just fine before I had the mixer. But now they come out less than an inch tall and all jello-like. I even tried souring the milk with lemon juice first, to make it like buttermilk. This works great with pancakes.

I suspect that my baking powder is flat. Does this happen? Does it just lose its potency? Because otherwise it would surely have reacted with the citric acid, right?
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Old 05-12-2019, 04:51 PM
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Originally Posted by brujaja View Post
I suspect that my baking powder is flat. Does this happen? Does it just lose its potency?
Yes, baking powder can and does "go flat." Once opened, it begins to react with the humidity in the air, which causes it to do its thing while it's in the container. Several sources I'm finding suggest that it can typically be expected to have a shelf life (once opened) of only about six to twelve months, depending on how tightly it's sealed, and how humid your environment is. They also suggest that you should get a new can after six months, just to make sure you aren't working with ineffective stuff.

A couple of links:
https://www.livestrong.com/article/5...baking-powder/
https://www.doesitgobad.com/does-baking-powder-go-bad/

Last edited by kenobi 65; 05-12-2019 at 04:53 PM.
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Old 05-12-2019, 05:16 PM
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Oh, thank you! That's gotta be it.
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Old 05-12-2019, 11:05 PM
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New can after six months????

Uh-oh. Mine says it came from "Chicago 24, Ill."
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Old 05-12-2019, 11:08 PM
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Mo’ eggs.
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Old 05-12-2019, 11:38 PM
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New can after six months????

Uh-oh. Mine says it came from "Chicago 24, Ill."
You win the thread.
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Old 05-13-2019, 12:58 AM
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Mix a tiny amount of baking soda with an acid like vinegar or lemon juice. If it fizzes vigorously, it’s still good. If it doesn’t react, time to get a new box.
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Old 05-13-2019, 01:03 AM
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Originally Posted by Shalmanese View Post
Mix a tiny amount of baking soda with an acid like vinegar or lemon juice. If it fizzes vigorously, itís still good. If it doesnít react, time to get a new box.
Baking soda is not the same as baking powder.
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Old 05-13-2019, 09:26 AM
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Mix a tiny amount of baking powder with water. If it fizzes, it’s still good. If it doesn’t react, time to get a new box.

CMC fnord!
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