Process Authority Letters
Validated process authority documentation for acidified foods, low-acid foods, and thermal processing — helping you classify products and meet co-packer and regulatory requirements.
AFDO Recognized Process Authority
A Process Authority (PA) Letter is typically required by co-packers to classify your product and confirm the thermal or acidification process is safe. Our laboratory team includes AFDO-recognized process authority expertise on acidified foods, low-acid foods, acid foods, and thermal processing.
When You Need a PA Letter
New Product Launch
Classify shelf-stable or refrigerated formulations before scaling production.
Co-Packer Requirements
Provide documentation your manufacturing partner needs to run your process safely.
Regulatory Filings
Support scheduled processes for acidified or low-acid canned foods.