Montreal Bagel

Montreal draws its water from the St. Lawrence River and treats it at the Atwater and Charles-J.-Des Baillets plants. The result is a moderately soft water with a total hardness around 117 mg/L, calcium at 32 ppm, and alkalinity around 93 mg/L as calcium carbonate. It is considerably softer than Naples, notably harder than Portland, and a natural counterpart to New York's Catskill-sourced water. The comparison with New York matters because the Montreal bagel and the New York bagel are the two great bagel traditions, and they are deliberately, almost stubbornly, different.

Montreal bagels are smaller, denser, sweeter (the dough contains honey and sometimes egg), boiled in honey water, and baked in a wood-fired oven. The water plays a quieter role here than in New York, where the very soft Catskill water is often credited with the chewy, elastic crumb. Montreal's slightly higher mineral content contributes a firmer gluten structure, which suits the denser, chewier texture of the Montreal style. The moderate bicarbonate (around 113 ppm) provides enough buffering to keep the dough pH stable during fermentation without overpowering the sweetness from the honey. Calcium at 32 ppm supports yeast activity without tightening the gluten excessively. The low sodium (12 ppm) means the water itself does not compete with the salt in the recipe.

Montreal bagel-makers have been working with this water for generations. Fairmount Bagel has been open since 1919; St-Viateur since 1957. The water is part of the tradition not because anyone chose it for its chemistry, but because the recipes and techniques evolved around it. That is how most regional food traditions work: the water is the constant, and the craft adapts.