Royal Institution @rigb.org · 21d In a torched frozen dessert like a Baked Alaska, meringue acts as a thermal insulator. We had to put this to the test, Ri-style🔥 Watch the full talk with Sorted Food's Ben Ebbrell: youtube.com/watch?v=8vCgNB6osSs
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The meringue is a whipped foam packed with air bubbles, and air is a poor conductor of heat. These tiny air pockets create a protective shield that slows the blowtorch's heat, preventing the ice cream from melting. And keeping Dan's hand safe!