Iowa cottage food and hot sauce: the batch pH rule
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Yes. Iowa's cottage food law, in place since 2022, needs no license or inspection, and the state's licensing chart lists acidified hot sauce as eligible cottage food [1] [2]. The rule that matters most is testing: every batch of a home canned product must be measured with a pH meter (or a water activity meter) and reach a finished equilibrium pH of 4.60 or lower, each container must show the date it was made and canned, and you must hand over your batch records on request, even at the market table [3]. You sell only directly to consumers. This page covers the batch rule, the chart, sales and the label.
What the rule asks for every batch
Iowa Administrative Code 481-30.13 sets the conditions for "home-processed and home-canned pickles, vegetables, or fruits" sold as cottage food [3]. A pepper sauce is a canned vegetable product, and the state chart treats hot sauce as cottage food, so plan to meet all of these:
- Measure each batch. Use a pH meter or water activity meter on every batch; a single test of the recipe is not enough [3].
- Hit the number. Finished equilibrium pH of 4.60 or lower, or water activity of 0.85 or less [3]. Hot sauce is thin and watery, so in practice you are working to the pH limit.
- Date every container. Each container sold must show the date the food was processed and canned [3] [4].
- Keep the records with you. Batch testing records go to the regulator on request, "including at the point of sale" [3].
Strips and kits are not meters. The measuring pH page covers calibration and taking an equilibrium reading, and batch records shows a log that ties each reading to a lot.
The state chart, and a contradiction in it
The Iowa Department of Inspections, Appeals, and Licensing (DIAL) publishes a Home-Processed Food Items Licensing Guide that sorts products by category [2]. Its sauce entries read:
| Item in the chart | Cottage food eligible | Note in the chart |
|---|---|---|
| Hot sauce (acidified) | Yes | "No pH testing required." Review 481-30.13 |
| Hot sauce (high acid food) | Yes | "pH testing required." Direct to consumer only |
| Fruits or vegetables (fermented) | Yes | "No pH testing required." Review 481-30.13 |
| Syrups and other sauces (temperature controlled for safety) | No | Home food processing establishment rules apply |
The "no pH testing required" note on acidified hot sauce does not square with the rule itself, which requires a meter reading on every batch of home canned vegetables [3]. This page follows the rule, because the chart tells you to review it and the rule is what an inspector enforces. Meter every batch. If DIAL tells you in writing that your sauce is exempt from batch testing, keep that letter with your records.
Fermented sauce gets the same yes in the chart [2]. A ferment you bottle as a shelf stable product still falls under the home canned rule, so meter it too. This book treats a ferment finished with vinegar as an acidified food unless a process authority rules otherwise in writing.
Who you can sell to, and how
Cottage food must go directly from you to the consumer [1] [3]. You may sell in person, remotely, by phone or online, and deliver it yourself, through your agent or by mail [4]. The only food establishment where cottage food may be sold is a temporary food establishment you operate, such as your own stand, with the product packaged and labeled [1] [3]. Stores, restaurants and wholesale buyers are out. Out of state sales are not addressed in the law or on DIAL's page; selling across a state line brings in the other state's rules and federal ones.
There is no sales cap for cottage food in the sources reviewed [1] [4]. Iowa also licenses home food processing establishments under a separate chapter for products that do not qualify [1] [2]; ask DIAL about it if your sauce needs refrigeration.
What Iowa Code 137F.20 puts on the container
Iowa Code 137F.20 requires [4]:
- Your name and address, phone number or email
- The common name of the food
- Ingredients in descending order of predominance
- The statement "This product was produced at a residential property that is exempt from state licensing and inspection."
- An allergen statement naming each major allergen present
- For home canned products, the date the food was processed and canned
The same section adds that meeting the cottage exemption "does not mean compliance with federal law" [4]. For an acidified sauce, the federal rules are summarized on acidified food rules, and the federal label elements on what a hot sauce label must say.
Selling to stores means a license
Wholesale, retail placement or out of state distribution takes you outside cottage food. That route runs through a DIAL food processing license, a commercial or shared kitchen, and the federal steps for an acidified food: a process authority review, FDA registration and a filed process.
Confirm with DIAL
The Iowa Department of Inspections, Appeals, and Licensing administers cottage food; its Cottage Foods page and licensing chart are listed below [1] [2]. Ask DIAL to confirm the batch testing requirement for your specific sauce. This page was last verified in October 2026.
If you plan to sell at markets, selling at farmers markets covers setup and sampling, and selling hot sauce in your state compares Iowa with its neighbors.
References
- Iowa Department of Inspections, Appeals, and Licensing, Cottage Foods, updated April 20, 2025. https://dial.iowa.gov/licenses/food-hotels/cottage-foods
- Iowa Department of Inspections, Appeals, and Licensing, Home-Processed Food Items Licensing Guide, not dated, viewed October 2026. https://dial.iowa.gov/media/7275/download
- Iowa Administrative Code r. 481-30.13, Cottage food, effective November 9, 2022 (Cornell LII). https://www.law.cornell.edu/regulations/iowa/Iowa-Admin-Code-r-481-30-13
- Iowa Legislature, Iowa Code 137F.20 (2026). https://www.legis.iowa.gov/docs/code/2026/137F.20.pdf
