Processed
Stiff Levain
A tier
A stiff levain is a dough-like culture, often 50–65% hydration, firm enough to knead. Lower water favours acetic snap, slower yeast, and a culture that keeps longer in the cool without turning to soup. Italian lievito madre and some central European sours are stiff on purpose. You cut and fold it like a dough, not a batter. It is slower to ripen than a wet jar and harder to mix evenly into a white dough if you leave dry lumps. Feed by weight, not by "a spoon of water." Choose stiff when you want keeping quality, a firmer sour, or a madre tradition. Do not call a neglected wet starter "stiff" because the flour has settled.
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Characteristics
Preparations
Traits
History
Italian lievito madre was kept as a firm dough, washed and refreshed on a schedule.
Central European bakers used firm sours for keeping quality in cool bakeries.
Paneettone houses published stiff-madre methods that home bakers tried to copy.
Online bakers split camps between 100% jars and 50% stiff levains for flavour control.