Paris Baguette

Paris water is moderately hard, with enough calcium to strengthen gluten without making the dough tough. This balance matters for baguettes, where you need a dough that's strong enough to hold its shape during a long proof but extensible enough to produce that open, irregular crumb.

The moderate mineral content also plays a role in crust development. Calcium supports enzymatic activity during fermentation, which affects the sugars available for the Maillard reaction in the oven. This is part of what gives a good baguette its thin, shattering, deeply coloured crust. It's not the whole story (oven design, steam injection, and flour quality matter enormously), but the water contributes.

For baguettes and other lean French breads, Paris's profile strikes a useful balance. Too soft and the dough lacks structure; too hard and it becomes resistant and difficult to shape. If you're serious about your baguettes, the water is worth paying attention to, even if it's one variable among many.