Making puffed rice, also known as "muri," involves a fascinating process. First, rice grains are cleaned and dried thoroughly to remove any moisture. Then, they're heated in a large container or vessel over high heat. As the grains heat up, the moisture inside them turns into steam, causing them to expand rapidly. This expansion leads to the grains bursting open, creating the light and airy texture of puffed rice. The process requires careful monitoring to prevent burning and ensure uniform puffing. Once puffed, the rice is cooled and can be seasoned or enjoyed plain as a crunchy snack.