Canning for Beginners Canning your own food is healthy, economical, and great for the environment. Some people do canning as a hobby, because it's a creative and fun way to learn something new and to preserve food. Others can for health reasons, because it's a great way to keep nutritious food in your pantry for months. It's also economical; people like to can because it allows them to use all the food they grow, produce,...