Guides
Who enforces a scheduled process for acidified hot sauce in the US, and what does the letter cover?
What an acidified hot sauce scheduled process letter covers in the US, how FDA and state rules divide the work, and the labels and records a maker keeps.
What to take away
- A scheduled process is a written procedure for one product, set by a qualified process authority, and 21 CFR Part 114 requires it before an acidified hot sauce is sold.
- Hot sauce is acidified when low-acid ingredients such as peppers reach a finished equilibrium pH of 4.6 or below with water activity above 0.85.
- Establishment registration and a separate process filing sit on top of whatever license your state issues.
- The letter, the batch records and the supervisor certificate are the first documents an inspector asks to see.
Shelf-stable hot sauce sold across state lines is an acidified food under 21 CFR Part 114, and that classification starts a paper trail well before the first jar is filled.
Who has jurisdiction
The FDA writes the federal rule for acidified foods. It defines the category, requires a scheduled process established by a qualified person, and requires processing controls with records kept on site.
Who Regulates Your Hot Sauce
- FDA writes federal acidified foods rule
- State agriculture or health issues license
- Local health inspects the kitchen
- Establishment registration follows location
- Process filing follows product and container
Under that sit the states. Your state department of agriculture or health issues the processing license and inspects the plant. Local health departments often inspect the kitchen itself. Some states add their own acidified rules, so a letter written for one state may need rewording for another.
Two submissions run beside the process letter: establishment registration and the process filing, both under 21 CFR Part 108. Registration follows a location, and the filing follows a product and a container. Change either and you refile.
What the process authority letter contains
A process authority is a person qualified by training or experience to establish a scheduled process. University food science extension programs are the usual source for small makers. The letter covers one product, and the failure patterns that repeat across small batches are usually pH and record defects rather than recipe defects.
The letter names the product and container, the formulation with its acid source, the target pH and the maximum equilibrium pH, and the thermal process. That covers fill temperature, hold time and cooling. It also sets the critical factors, the monitoring frequency, the deviation procedure, and the records you keep.
| What the letter states | What it controls on the floor |
|---|---|
| Product and container | Which jar size and closure the schedule covers |
| Formulation and acid source | The recipe the schedule was written for |
| Target pH and maximum equilibrium pH | The reading at each batch pH check |
| Thermal process | Fill temperature, hold time and cooling |
| Critical factors | The readings a batch has to meet |
| Monitoring frequency | How often each reading is taken |
| Deviation procedure | What happens to a batch outside its limits |
| Records | What gets written down, and for how long |
Letter Contents vs Floor Controls
Letter states
- Maximum equilibrium pH
- Qualifies as acidified
- Fill and hold temperature
- Container treatment
- Critical factors and limits
- Set in letter
- Deviation procedure
- Written in letter
Floor controls
- Maximum equilibrium pH
- Measured every batch
- Fill and hold temperature
- Monitored at fill
- Critical factors and limits
- Checked each batch
- Deviation procedure
- Followed when reading fails
Cost and time vary by product. For a simple hot fill with a lab pH check, typical quotes run a few hundred dollars and the signed letter often takes two to four weeks. A heat penetration or challenge study adds lab work, and typical quotes land in the low thousands with a two to three month turnaround.
FDA establishment registration is free, and the acidified food process filing carries no FDA fee. Better Process Control School tuition is typically a few hundred dollars.
Supervision carries its own requirement. 21 CFR 114.10 requires that processing be supervised by someone who has completed a school approved by the Commissioner, which in practice means a Better Process Control School certificate.
Where a home kitchen stops
Cottage food laws are written state by state. Most cap annual sales, require direct sales to the consumer, and list canned or acidified goods as prohibited, because the state cannot verify a scheduled process. California's cottage food operations guide shows how one state draws that line. Your own state's list is the one that governs.
Which goods are excluded varies. Texas runs cottage food production rules through its Department of State Health Services. Florida lists allowed cottage foods through its Department of Agriculture and Consumer Services. California splits cottage food operations into Class A and Class B permits.
Home Kitchen or Licensed Space
Does your state allow acidified sauce under cottage food?
sell directly under cottage limits
use commercial, shared kitchen, or co-packer
If acidified sauce is excluded, the routes left are a licensed commercial kitchen, a shared kitchen, or a co-packer. Each one changes who holds the license. None of them removes the letter.
Labels and records
A compliant label carries a statement of identity, net quantity of contents, ingredients in descending order by weight, the manufacturer or distributor's name and place of business, and allergen declarations. Nutrition facts are required unless a small business exemption applies.
Treating the label as the last task invites a reprint run. A condiment development plan that puts label decisions early keeps artwork and formulation in step, and it saves a second print order.
Records to keep:
- The process letter, the filing confirmation, and the scheduled process for each product.
- pH readings for each batch, with the meter's calibration check.
- Fill temperature, hold time and cooling readings, logged at the frequency the letter sets.
- Deviation noteswhat went out of range, and what happened to that batch.
- The supervisor's Better Process Control School certificate and the current formulation sheet.
Records to Keep on Site
- Current process authority letter
- Establishment registration and filing confirmations
- Better Process Control School certificates
- Batch records with pH and fill temperature
- Distribution records and recall contact list
What happens when you skip it
Sauce made without a scheduled process is adulterated under the Federal Food, Drug, and Cosmetic Act. FDA can detain the product, seek seizure, or ask a court for an injunction. A state can pull the license that lets you sell at all.
The commercial harm usually lands first. Buyers do not read your pH logs, but they do ask whether the logs exist. A distributor wants the letter before the first purchase order, and spotting a sauce fault at the register costs more than catching it in your own records.
