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Alum is used in playdough as a preservative to prevent the growth of mold and bacteria. It also helps to improve the texture and elasticity of the playdough.

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Q: Why do they use alum in playdough?
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Can cream of tartar be used as a substitute for alum in homemade play dough recipe?

I'm not sure. Probably not, i know that you can use cream of tartar though.


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Can you use sugar insted of salt to bake playdough?

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Is ammonium alum safe?

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Does playdough go hard?

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Has pink playdough ever been invented?

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Is playdough heterogeneous or homogeneous?

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