Function: Popcorn machines heat popcorn kernels until they pop, creating a popular snack.
Types: They come in various types, including hot oil, hot air, microwave, and stovetop models. The pictured models appear to be electric, possibly using hot oil.
Commercial Use: Larger machines are common in movie theaters and carnivals.
Home Use: Smaller, hot-air models are available for home use.
Operation: Heat causes moisture inside the kernels to turn to steam, building pressure until they explode.
Features: Some models have a stirring arm to prevent burning and ensure even heating.
Capacity: Sizes vary, with some commercial machines having large kettles for high-volume production.
Health: Hot-air models are considered a healthier option as they don't require oil.