Sources
This page explains where Just Freeze Drying gets its information and how each kind of source is used. It is the source hierarchy behind every guide on this site: what outranks what, and why a claim here is either sourced or labeled as guidance.
Specific official sources outrank general ones: a manufacturer manual for a specific machine outranks general equipment guidance, and a government food-safety page outranks a blog for the same question.
Primary sources outrank secondary ones: official documentation, agency pages and research literature come before summaries, reviews and reseller articles.
A page's own claims are never proved by the same page or another page on this site: internal links navigate, they do not prove facts. Every factual claim traces to an external primary source or to a clearly labeled WeFreezeDryIt record.
When no source exists, the site says so: Not Published, Not recorded, Not tested or General Guidance, rather than inventing a citation.
Sources are organized into the categories below. Each category lists real, general reference points and explains how the site uses it. This page deliberately does not dump hundreds of links: it shows the categories and the anchor points a reader can verify.
Official U.S. federal food-safety material: the U.S. Food and Drug Administration (fda.gov), FoodSafety.gov (foodsafety.gov) and the USDA Food Safety and Inspection Service (fsis.usda.gov).
How this site uses it: Used for food-safety requirements, labeling, safe handling and storage of freeze-dried and rehydrated food where U.S. rules apply. These are primary sources and outrank blogs and reseller articles for every safety claim on this site.
University and extension material on food preservation, including the National Center for Home Food Preservation (nchfp.uga.edu) and USDA National Institute of Food and Agriculture (nifa.usda.gov) extension programs.
How this site uses it: Used for reliable background on preservation methods, food science and safe practices. Extension material is treated as a strong secondary source: educational and research-based, but not a regulatory authority.
Official manuals, specification pages, safety documentation, electrical requirements and warranty terms published by freeze-dryer manufacturers.
How this site uses it: Used for model-specific values: settings, vacuum targets, electrical requirements, maintenance schedules, error codes and published specifications. Manufacturer information is labeled Manufacturer Guidance or Manufacturer Specification and is reported as the manufacturer's information, never as an independent test result. The site does not host copyrighted manuals; it links to official sources instead.
Peer-reviewed and technical literature covering water activity, residual moisture, microbiology, nutrition and freeze-drying (lyophilization) science, primarily through PubMed/NCBI and USDA food composition data.
How this site uses it: Used for the technical background behind claims about shelf life, water activity, residual moisture, microbial behavior and nutrition. A claim that depends on science cites this kind of literature where a specific source supports it; literature is never cited just to look authoritative.
Results from outside laboratories that actually perform testing for WeFreezeDryIt, such as moisture content, water activity, nutrition or microbiology analysis.
How this site uses it: Used only when such testing has actually been performed: the result is labeled External Lab Result, the laboratory is named, and the result is kept fully separate from internal measurements. No external laboratory results exist on this site yet, so this category is empty on purpose rather than populated with references to labs that have not done work for us.
Official regulatory bodies for the jurisdictions the site covers: the U.S. FDA and USDA, Panama's MINSA and AUPSA, and the European Food Safety Authority (EFSA) where European questions apply.
How this site uses it: Used as the explanation layer for regulation: this site explains what the rules mean and links to the official agency as the authority. Just Freeze Drying never pretends to be the regulatory authority, and regulatory pages direct readers to the agency for current, binding requirements.
How this site is created, reviewed, corrected and kept honest.
Prepared by: Just Freeze Drying Editorial Team Operated by: WeFreezeDryIt Evidence: General Guidance (Source hierarchy document)