https://kvalifood.com/tags/leavening/ Recent content in Leavening on Kvalifood Hugo en-us Thu, 09 Apr 2026 00:00:00 +0000 https://kvalifood.com/wiki/leavening/ Thu, 09 Apr 2026 00:00:00 +0100 https://kvalifood.com/wiki/leavening/ <h1 id="leavening">Leavening</h1> <img src="https://kvalifood.com/wiki/leavening/leavening_hu_6042a6e2eb95c5ab.webp" alt="" loading="lazy"> <p>Leavening is the introduction of gas into dough or batter to make it light and porous. Three gas sources exist — biological (yeast), chemical (baking soda/powder), and physical (steam, mechanical aeration) — and most preparations combine two or more. The choice of leavening system shapes not just texture but flavor, timing, and the entire workflow of baking.</p> <h2 id="biological-leavening-yeast">Biological leavening: yeast</h2> <p><em>Saccharomyces cerevisiae</em> — baker&rsquo;s yeast — metabolizes sugars to produce CO₂ and ethanol. In the oxygen-poor interior of dough, it ferments rather than respires, generating gas slowly over hours. This slowness is a feature: it allows time for <a href="https://kvalifood.com/wiki/gluten-science/">gluten</a> development, enzyme activity, and the accumulation of flavor compounds (organic acids, alcohols, aldehydes) that give bread its complexity.</p>