A serrated blade is like a saw with its dented or toothed blade features.
Food with hard exteriors can be cut easily and smoothly using a serrated blade or knife. A serrated blade catches the hard surface and rips through the interior smoothly when used to cut food, like bread and some fruits.
Thus, a serrated blade makes it easier to cut smoothly and effortlessly through any object with a hard exterior and soft interior.
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