rye bread should ideally not be refrigerated, as the bread will dry out and become stale faster than at room temperature. If you must refrigerate rye bread (eg, due to a lack of pantry storage space or very hot, humid room conditions), the bread will typically last for only about 2-3 days before getting stale.

Why does rye bread not mold?

But more importantly, the sourdough starter is what provides most of the leavening in a pure rye bread, not normal yeast. Sourdough is pre-fermented and acidic, which discourages foreign bacteria and mold from taking hold -- i.e, it is a natural preservative.

How long does rye bread last in freezer?

How Long Can You Freeze Rye Bread? 3 months is about as long as you will want to freeze your rye bread. Beyond this point, you'll find that both the flavour and, more noticeably, the texture will degrade. It will be perfectly safe for longer – in fact, it will be safe to eat for years to come.