Haven't made pastry before, but I know with some biscuit recipes they say to let it have half an hour in the fridge... I always thought that was just to make it firmer and easier to roll out though. Interesting about the proteins. I won't argue anyway, was just curious! Thanks again.




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The main thing that happens as dough relaxes is that gluten strands have time to adjust to the new length and shape, making them easier to roll and less likely to shrink during baking. So it isn't a protein but gluten. The other thing (for pastry) the resting time allows for the water to evenly distribute through so there are no dry and flaky spots with soggy spots.

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