POPCORN MACHINES AND OTHER MACHINES HAVING MULTIPLE HEAT ZONE COOKING SURFACES FOR PRODUCING POPCORN AND OTHER TYPES OF EXPANDED FOODS

摘要

Machines having multiple heat zone cooking surfaces for producing popcorn and other types of expanded foods are disclosed herein. In one embodiment, a kettle assembly for popping corn includes a popping surface having a first heat zone adjacent to a second heat zone. In this embodiment, the first heat zone is configured to receive a plurality of unpopped corn kernels, and heat the unpopped corn kernels to a first level. The second heat zone is configured to receive the unpopped corn kernels from the first heat zone, and heat the unpopped corn kernels to a second level, higher than the first level. In one aspect of this embodiment, the kettle assembly can include a first heating element positioned at least proximate to the first heat zone, and a second heating element positioned at least proximate to the second heat zone. The first heating element operates at a first temperature, and the second heating element operates at a second temperature, higher than the first temperature.