Allison Carroll DuffyAllison Carroll Duffy is a Master Food Preserver, trained through the University of Maine Cooperative Extension. She holds a master's degree in Gastronomy from Boston University and teaches canning and preserving classes and workshops. She has writte about food for various publications including the Boston Globe and Backpacker magazine. Allison runs the Canning Craft blog (canningcraft.com) and lives in Portland, Maine.  Read More Read Less