Hi Sharon! Vinegar helps prevent crust from oxidizing (turning grey) if you store your dough in the fridge, and as a liquid that isn't water, it gives your dough moisture to come together without giving the flour more water to create gluten which can cause toughness.
November 25, 2019 at 4:59pm
In reply to What is the point of the… by Sharon (not verified)
Hi Sharon! Vinegar helps prevent crust from oxidizing (turning grey) if you store your dough in the fridge, and as a liquid that isn't water, it gives your dough moisture to come together without giving the flour more water to create gluten which can cause toughness.