https://kvalifood.com/tags/surfactant/ Recent content in Surfactant on Kvalifood Hugo en-us Thu, 09 Apr 2026 00:00:00 +0000 https://kvalifood.com/wiki/boilover-physics/ Thu, 09 Apr 2026 00:00:00 +0100 https://kvalifood.com/wiki/boilover-physics/ <h1 id="boilover-physics">Boilover Physics</h1> <img src="https://kvalifood.com/wiki/boilover-physics/boilover-physics_hu_8a175c45d0824012.webp" alt="" loading="lazy"> <p>Boilover is not just an annoyance or a stove-cleaning catastrophe — it is a combined <a href="https://kvalifood.com/wiki/starch-gelatinization/">starch chemistry</a> and <a href="https://kvalifood.com/wiki/precision-cooking/">temperature control</a> problem. The foam is created by starch acting as a surfactant; the overflow is caused by binary on/off heating that dumps excess energy into violent steam production. Understanding both mechanisms reveals practical solutions.</p> <h2 id="the-foam-chemistry">The Foam Chemistry</h2> <p>When <a href="https://kvalifood.com/wiki/potatoes/">potatoes</a> or <a href="https://kvalifood.com/wiki/pasta-noodles/">pasta</a> boil, <a href="https://kvalifood.com/wiki/starch-gelatinization/">starch granules</a> swell and burst, releasing amylose and amylopectin into the water. These <a href="https://kvalifood.com/wiki/carbohydrate-overview/">starch molecules</a> create thin, flexible films around steam bubbles. In pure water, steam bubbles pop immediately at the surface. In starchy water, the films stabilize bubble structure — bubbles stack and trap additional bubbles, building a stable foam layer. This foam acts as an insulating lid, trapping steam underneath, which lifts the entire foam mat up and over the pot rim.</p>