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If you're making a regular cake, you add all the first ingredients (eggs, butter, sugar, ...) and mix everything well. When you add the last ingredient, the flour, you mix until it's just incorporated, since over-mixing can make the gluten form and you'll end up with a tough cake.

If you work with gluten-free flour, can you mix as long as you want?

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4 Answers

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If there's leavening in the cake (baking soda or baking powder) that gets activated once incorporated with the rest of the ingredients, and you substantially overmix, you may lose some of its power as you help the gas escape from your batter. Unless you're whipping it vigorously, you're not going to be bringing enough air into the batter to make up for it. This is pretty much like letting the batter sit out on the counter for a while before baking, except faster.

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In terms of 'toughness', yes you can mix it a long time. However, while you are mixing, you are incorporating air into the mixture, so you must take care to not go crazy.

That being said, the main reason to mix a cake until 'just incorporated' is because of gluten development. I guess what I am saying is, that within reason, you can mix a gluten free cake for quite a while with no adverse affect.

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It depends on what is in the flour.

Xanthan gum's binding power is certainly dependent on the amount of mixing. More mixing produces a tougher colloid. As many gluten-free recipes use xanthan gum as a binder, this will indeed be a problem with overmixing.

If you are using a pre-made gluten free flour, you have to read the ingredients. If these are pure starches only, you can't overmix. If they have thickening agents, it is possible that overmixing is bad or not, depends on the thickener used in the specific brand.

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In New Zealand, We have 2 main g/f flours to bake with. Both are a combination of rice flour and tapioca among other ingredients. using these flours it is easy to over-mix baking recipes using these flours and the baking becomes tough and chewy. The more tender and delicate you want your cake, the less you mix it in my case.

As long as I don't use rice flour in my custom blended g/f flour mixes, I can mix the batter "until the cows come home".

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