A modular humidity control system is provided. An example system includes a body configured for attachment with a food storage housing. The body may define a closed circuit air flow path for circulating air through the food storage housing. The system also includes a desiccant element secured within the closed circuit air flow path that removes moisture from the moisture-laden air passing through the closed circuit air flow path, and stores the removed moisture. The system further includes a regeneration system that monitors a saturation of the desiccant element. In an instance in which the saturation of the desiccant element exceeds a saturation threshold, the regeneration system may evaporate at least a portion of the moisture stored by the desiccant element.