Cannatrol Cool Cure C2WiFi Drying and Curing System for Controlled Post Harvest Results The Cannatrol Cool Cure C2 is a fully controlled drying, curing and storage system designed for growers who want consistent, repeatable post harvest results. With built in WiFi connectivity and a self contained environment, it removes the need to rely on room conditions or constant manual adjustments. By managing temperature and moisture internally, the Cool Cure C2 gives you a stable,