There’s a science to rolling out fresh pasta | Kitchen aide

The Guardian's 'Kitchen aide' column addresses a common frustration for home cooks: fresh pasta dough tearing during rolling. Experts Jacob Kenedy, chef-patron of Bocca di Lupo, and Merlin Labron-Johnson, identify several scientific culprits behind this issue. Key factors include the type of flour used, the temperature of the dough, and even the size of the egg. Different flours possess varying protein levels, which directly impact gluten development and the dough's elasticity; an incorrect flour choice can lead to a weak or overly stiff dough. Cold dough is less pliable and more prone to tearing because gluten strands are less elastic at lower temperatures, making it harder to stretch without breaking. Conversely, dough that is too warm or over-hydrated can become sticky and difficult to handle. The size of the egg significantly affects the dough's hydration balance; too much liquid can make the dough weak and sticky, while too little can result in a dry, brittle dough that cracks easily. The article emphasizes that understanding these fundamental principles of ingredient interaction and dough mechanics is crucial for achieving perfectly smooth and elastic fresh pasta. This advice comes as Kenedy and Labron-Johnson prepare to host two feasts in Somerset next month, celebrating the Italian midsummer holiday, Ferragosto.