Prevent the dough from "oxidizing"?

  • Prevent the dough from "oxidizing"? evilReiko

    I was practicing and trying to make an apple pie depending on this source:

    In the Liquid section, it's said: "A little bit of acid--vinegar or lemon juice--helps tenderize the dough and prevents it from oxidizing."

    What's "Oxidizing"? First time I read/hear this term in cooking?

    Please help me learn, I'm still a beginner! Thanks in advance

  • I'm not a chemist so I'll let wikipedia do it for me:

    As far as it's culinary effects in crusts- I have seen unreliable reference to the flour oxidizing and developing a off color.

    I have never seen this personally and I am skeptical of it. Pie crusts can be made just fine without vinegar. Vinegar does significantly tenderize the crust as well as add an interesting flavor.

baking dough pie acidity
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