Why rest puff pastry after every second turn?

Resting puff pastry after every second turn allows the gluten to relax, which helps prevent the dough from shrinking during baking. This relaxation period also allows the layers of butter and dough to chill, ensuring that the butter remains solid and creates distinct, flaky layers when baked. Additionally, it helps improve the overall texture and rise of the pastry. Regular resting ultimately leads to a more successful puff pastry outcome.