Source: Illinois Department of Public Health (IDPH) / local health departments. Cottage food laws change often — confirm current rules before selling.
Home-to-Market Act (2022) expanded venues (home, online, delivery, fairs) and requires local health dept registration; PA 103-903 added TCS determinations, recognized mobile farmers markets and adjacent-county registration.
Outgrowing cottage food? When you need a licensed kitchen, see Illinois food-business requirements, estimate the build with the cost-to-open calculator, and check whether you need a hood.
Local food-permit cost, plan review and the health-department contact for the counties people look up most.