Adding salt too early to dough can inhibit yeast activity, slowing down fermentation and potentially resulting in a denser, less airy final product. It can also toughen the gluten structure.
Salt plays a crucial role in dough development, but timing is key. Yeast, the leavening agent in many doughs, thrives in a specific environment. Salt, being hygroscopic, draws moisture away from the yeast. If added directly to the yeast or too early in the mixing process, it can dehydrate the yeast, hindering its ability to produce carbon dioxide, which is essential for the dough to rise. Furthermore, salt strengthens gluten, the protein network that gives dough its elasticity and structure. While this is beneficial later in the process, adding it too early can lead to an overly tight gluten structure, making the dough difficult to work with and resulting in a tougher texture in the baked product. Ideally, allow the flour and water to hydrate first (autolyse) before adding the yeast and then the salt. This gives the yeast a head start and allows the gluten to develop more evenly.
To mitigate the effects of adding salt too early, you can increase the hydration of your dough slightly. The extra water can help offset the dehydrating effect of the salt on the yeast. However, be careful not to add too much water, as this can lead to a sticky and unmanageable dough.