Most people who want to sell kettle corn start by thinking about the kettle and the recipe. The part that actually stops new vendors is paperwork. Every county does it a little differently, and some events add their own rules on top.
The good news: kettle corn is usually treated as a low-risk food, and most of what you need comes down to a handful of phone calls. Here's what to sort out, in order.
Rules change from state to state and county to county. Use this as a list of questions to ask, not legal advice.
1. A temporary food permit from your county health department
This is the big one. To sell food at a fair, festival or market, most counties require a temporary food establishment permit (it may be called a temporary food vendor or special event permit).
What to expect:
A fee for each event, or a yearly permit if you sell at the same market every week. Fees vary a lot. Some counties charge $25 to $50 per event, while others charge $100 to $300 depending on the food's risk level.
An application deadline. Many counties want your application at least two weeks before the event and charge a late fee after that.
A food handler card. Usually at least one person in your booth needs one.
An inspection at the event. The inspector checks your handwashing setup, food storage, and how you keep the popcorn covered and protected.
Call your county health department first, before you buy anything. Their answers decide what equipment you need and what your first season will really cost.
2. Where your kettle corn is made
Kettle corn is usually popped right at the booth, which is part of what sells it. Some health departments are fine with that on its own. Others also want you to use an approved or commissary kitchen for prep and storage.
If you want to sell bagged kettle corn you make ahead at home, look up your state's cottage food law. Many states allow popcorn as a cottage food, with rules on labeling, where you can sell and how much you can earn.
Ask your health department:
Can I pop on site at events without a commissary?
Where can I store my ingredients and equipment?
Does my state's cottage food law cover kettle corn I bag at home?
3. The fire marshal
A kettle corn booth means an open flame, propane and hot oil, often under a tent full of people. Expect the fire marshal or the event to ask about:
A fire-rated tent. Many events require a canopy rated to a flame-resistance standard such as CPAI-84.
A fire extinguisher. Ask which type they require, since some events want a specific class for cooking oil.
Propane safety. That means how tanks are stored and secured, how much spare propane you bring, and how far the kettle sits from the public and from the tent walls.
Some cities also want a separate open-flame or propane permit.
4. Business registration and sales tax
Before your first sale, you'll usually need to:
Register your business name with your county or state (a DBA or LLC, depending on how you set up).
Get a sales tax permit from your state so you can collect and pay sales tax at events. Some events ask for your number on the vendor application.
5. Liability insurance
Most fairs and festivals require a certificate of insurance that names the event as an additional insured. Even when it's not required, it's worth having.
Food vendor policies are sold per event or by the year. At the time of writing, per-event policies start around $50 and annual plans start around $25 a month, but your price depends on your business and location.
6. The event's vendor application
On top of county rules, each event has its own application, booth fee and requirements. Read them closely. Some events limit how many kettle corn vendors they accept, and good spots fill early.
7. Labels, if you sell prepackaged bags
If you bag kettle corn ahead of time, you may need labels with the product name, ingredients, allergens, net weight and your business name and address. Ask your health department what your state requires.
The phone call that answers most of this
Call your county health department and ask:
What permit does a temporary food vendor selling kettle corn need, and what does it cost?
How far ahead do I need to apply?
Can I pop on site, or do I need a commissary kitchen?
What handwashing setup do you require at the booth?
Does anyone in my booth need a food handler card?
Write down the answers, the name of the person you spoke to, and the date.
Get the free Kettle Corn Launch Checklist
Permits are one section of my free Kettle Corn Launch Checklist. It walks you through every step in order: choosing a kettle, getting permitted, pricing every bag and booking your first event.
👉 Get the free Kettle Corn Launch Checklist
Want the full walkthrough? Module 2 of the Popcorn Genius Academy covers legal and permits step by step, including how to find your own county's rules.
