Can I skip the acidified food rules by keeping my sauce refrigerated?
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Yes, the federal acidified food rule does not cover a sauce that stays cold the whole way, but the exclusion is narrower than most makers think and it swaps one set of duties for another. 21 CFR 114.3(b) excludes "foods that are stored, distributed, and retailed under refrigeration" [1]. All three verbs have to be true: in your cooler, on the truck and on the store shelf. If any buyer keeps your sauce on an ambient shelf, the exclusion is gone. A refrigerated sauce still needs a licensed kitchen or a state permit, a "Keep Refrigerated" label, a shelf life you can defend, and an unbroken cold chain. Here is what that route takes and when it wins.
What the exclusion covers
The refrigeration exclusion sits in the same sentence that defines acidified foods. After listing the products that are covered, 114.3(b) says that "foods that are stored, distributed, and retailed under refrigeration are excluded from the coverage of this part" [1]. Excluded from "this part" means excluded from Part 114, and with it the process filing in 21 CFR 108.25, which applies to acidified foods as Part 114 defines them [2].
Regulators read the exclusion the same way. Georgia's acidified foods bulletin lists "foods that are stored, distributed, and retailed under refrigeration" among products that are not acidified [3]. Montana's overview says refrigerated acidified foods are outside the special rules if "the finished product is kept under refrigeration at or below 41 degrees Fahrenheit" [4]. Minnesota's Department of Agriculture says products "stored, distributed, and sold under refrigeration" are exempt, but the label must prominently say "Keep Refrigerated" [5].
What a refrigerated sauce still has to do
This table sets out which duties drop away under the exclusion and which stay.
| Requirement | Shelf-stable acidified sauce | Refrigerated sauce |
|---|---|---|
| Scheduled process from a process authority (114.83) | Required [1] | Not required by Part 114; some states ask for a lab or process review anyway [6] |
| FCE registration and process filing (108.25) | Required [2] | Not required |
| Better Process Control School supervisor (114.10) | Required [1] | Not required |
| Food facility registration (section 415) | Required unless exempt | Still required unless exempt, for example as a retail food establishment [7] |
| State processor license or local permit | Usually required | Usually required |
| Sanitary manufacturing practices | Required | Required; FDA's 2024 warning letter to F1 Foods cited sanitation violations at a plant making refrigerated ready-to-eat foods alongside acidified sauce [8] |
| Federal label elements | Required | Required, plus "Keep Refrigerated" [5] |
| Holding at 41°F or below | Not needed for safety once processed | Required at every step [4][6] |
| Shelf life | Set by quality testing | Set by safety and quality; some states require a lab-determined use-by date [6] |
Cold storage slows microbial growth without killing what is already there. Sauces made without a heat step can carry acid-tolerant pathogens; Breidt and colleagues name E. coli O157:H7, Salmonella and Listeria monocytogenes as the organisms of concern in acidified vegetables [9]. A refrigerated sauce still needs clean equipment, a clean kitchen and sensible acidity.
One state's three routes, side by side
Oregon's health authority published a fact sheet in January 2026 for food businesses that bottle sauces and dressings [6]. It lays out the choices more clearly than any federal document, and the same three shapes show up in other states.
| Route | What Oregon requires | What it gives you |
|---|---|---|
| 1. Short-life refrigerated | Bottled cold, not hermetically sealed, stored under 41°F, date marked, 7-day shelf life; no variance needed | The simplest legal path for a restaurant or market stall |
| 2. Lab-tested refrigerated | pH results from an approved lab showing the sauce is not potentially hazardous, a lab-determined use-by date, not hermetically sealed, kept under 41°F and labeled "Keep Refrigerated" | A longer shelf life while staying out of acidified food rules |
| 3. Shelf-stable sealed | pH and water activity results, recipe and sample to a process authority; if acidified, referred to the Oregon Department of Agriculture | Ambient shelves, shipping, wholesale; the full acidified food path |
The sheet's warning applies everywhere: "Shelf-stable, hermetically sealed sauces may be an acidified food and subject to federal requirements" [6]. Check your own state's version of these routes, and check whether its home food route allows refrigerated foods at all; where it does not, a refrigerated sauce has to come from a licensed kitchen. Selling hot sauce in your state covers each state.
Keeping the cold chain unbroken
The exclusion is only as strong as the weakest refrigerator between you and the eater. Plan each link before you sell.
- Production. Chill the sauce right after bottling and keep it at or below 41°F [4]. Log cooler temperatures every day.
- Storage. Keep finished stock in a dedicated cooler with a thermometer you can read without opening the door.
- Transport. Use insulated containers with ice packs or a refrigerated vehicle for every delivery. Record the temperature at pickup and drop-off.
- Markets and events. Bring a cooler and a probe thermometer. If the stall has no cold storage, a refrigerated sauce cannot be sold there.
- Retail. Sell only to stores that will put the sauce in a refrigerated case. Write that into your terms. A buyer who moves it to an ambient endcap has taken you out of the exclusion.
- The label. Print "Keep Refrigerated" prominently on the front, as Minnesota requires [5], along with every element the federal rules require. What a hot sauce label must say lists them.
- The date. Put a use-by or best-by date on every bottle and tie it to a lot code. Best-by dates and lot codes covers how to choose one.
Shipping refrigerated sauce to customers by parcel is hard to do reliably. If online sales are part of the plan, the shelf-stable route is usually the honest choice.
Setting a shelf life you can defend
A refrigerated sauce needs a date backed by test results; how long your own bottles happened to last does not count as evidence. Virginia Tech Extension's guidance on refrigerated farmers market foods notes that dips, dressings and similar foods "require time and temperature control to ensure their safety" because they "do not have enough acidity to control microbial growth" [10]. A lab can run pH, water activity and a shelf-life study. Cornell's Food Venture Center offers a classification and shelf-life letter as one of its services [11]. What to have tested explains which tests answer which question.
When refrigeration is the better route, and when it is not
Refrigeration fits a sauce that cannot take heat without losing what makes it good (bright fresh-chile sauces, some ferments), a restaurant or market stall that sells within days, and a maker who wants to test demand before paying for a scheduled process. It fits poorly when you want grocery wholesale, online orders, gift sales or any buyer you cannot trust to keep the bottle cold. For those, a scheduled process and hot fill are cheaper in the long run than cold storage at every step.
If you will sell from your kitchen or a market
Most refrigerated sauce sellers start small, and the state rules decide where you can make and sell it. Start with selling hot sauce in your state, then check whether your operation needs FDA food facility registration.
References
- Legal Information Institute, Cornell Law School, 21 CFR 114.3 Definitions, accessed October 2026. https://www.law.cornell.edu/cfr/text/21/114.3
- U.S. Food and Drug Administration, 21 CFR 108.25 Acidified foods, eCFR, up to date as of October 20, 2026. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-108/subpart-B/section-108.25
- Mohan, A., Step-by-Step Guidelines for Processing, Manufacturing, and Regulatory Approval of Acidified Foods in Georgia, UGA Extension Bulletin B 1455, November 2015. https://secure.caes.uga.edu/extension/publications/files/pdf/B%201455_1.PDF
- Montana Department of Public Health and Human Services, Acidified Food Overview, revised December 11, 2014. https://www.dphhs.mt.gov/assets/publichealth/FCS/Wholesale/AcidifiedOverview.pdf
- Minnesota Department of Agriculture, Acidified Foods, modified July 30, 2025. https://www.mda.state.mn.us/acidified-foods
- Oregon Health Authority, Foodborne Illness Prevention Program, Bottling Sauces and Dressings, Food Code Fact Sheet #22, January 2026. https://www.oregon.gov/oha/PH/HEALTHYENVIRONMENTS/FOODSAFETY/Documents/FactSheet22SaucesDressings.pdf
- U.S. Food and Drug Administration, 21 CFR 1.226 Who does not have to register under this subpart?, eCFR, up to date as of October 20, 2026. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-A/part-1/subpart-H/subject-group-ECFRef316bd359c83c7/section-1.226
- U.S. Food and Drug Administration, Warning Letter to F1 Foods Inc. dba Flavor First Foods Inc., CMS 668515, March 14, 2024. https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/warning-letters/f1-foods-inc-dba-flavor-first-foods-inc-668515-03142024
- Breidt, F., Sandeep, K. P., and Arritt, F. M., Use of Linear Models for Thermal Processing of Acidified Foods, Food Protection Trends 30(5):268-272, 2010. https://site.extension.uga.edu/foodscienceandtechnology/files/2023/07/Breidt-et-al-2010-Below-4.1.pdf
- Eifert, J., Boyer, R., Wells, E. P., Saunders, T., and Yang, L., FST-300P, Virginia Cooperative Extension, June 2, 2020. https://www.pubs.ext.vt.edu/content/pubs_ext_vt_edu/en/FST/FST-300/FST-300.html
- Cornell Food Venture Center, CFVC Services and Fees, accessed October 2026. https://cals.cornell.edu/cornell-agritech/partners-institutes/cornell-food-venture-center/cfvc-services-fees
