Tier 1requires key
FoodData Central
USDA
- nutrition · ingredients
- united states
- CC0 / U.S. public domain
Use nutrient records with FDC IDs and data-type provenance; never infer missing values.
Open official source →Knowledge governance
What Chef Gringo knows—and why you can trust it.
Every source has an authority level, reuse boundary, jurisdiction, and refresh rule. A link is evidence to verify, not permission to copy everything behind it.
Tier 1active
2022 Food Code
U.S. Food and Drug Administration
- food safety · retail operations
- united states
- U.S. government work
Treat as model guidance; adopted state or local code controls when known.
Open official source →Tier 1active
Safe Minimum Internal Temperature Chart
USDA FSIS
- food safety · cooking
- united states
- U.S. government work
Use conservative temperature guidance and preserve rest-time requirements.
Open official source →Tier 1active
Child Nutrition Recipe Box
USDA / Institute of Child Nutrition
- standardized recipes · volume production
- united states
- U.S. government educational resources; item review required
Preserve yield, measure, HACCP and source metadata; do not imply every item has identical reuse terms.
Open official source →Tier 1active
Dietary Guidelines for Americans 2025–2030
HHS / USDA
- nutrition · dietary patterns
- united states
- U.S. government work
Educational guidance only; do not turn population guidance into individual medical advice.
Open official source →Tier 2active
PubMed
U.S. National Library of Medicine
- nutrition research · food science
- global
- Citation metadata; article rights vary
Index citations and abstracts within NCBI terms; never treat one paper as settled consensus.
Open official source →Tier 2manual review
PMC Open Access Subset
U.S. National Library of Medicine
- nutrition research · food science
- global
- Per-article license
Ingest only articles whose per-item license permits the intended commercial reuse.
Open official source →Tier 1manual review
IDDSI Framework
International Dysphagia Diet Standardisation Initiative
- texture modification · dysphagia
- global
- CC BY-SA 4.0 with IDDSI supplementary conditions
Do not alter the framework or labels; require clinical review for patient-specific guidance.
Open official source →Tier 3active
Open Food Facts
Open Food Facts
- packaged foods · barcodes
- global
- Open Database License (ODbL)
Keep as a separately attributed lookup layer; do not silently merge into a proprietary database.
Open official source →Tier 1active
Commercial Food Service Equipment
ENERGY STAR
- equipment · energy efficiency
- united states
- U.S. government program data; mark usage separately governed
Verify current certification by exact model before making a claim.
Open official source →Tier 1active
Certified Food Equipment Listings
NSF
- equipment · sanitation certification
- global
- Proprietary certification directory
Link to current listing and identify the exact model; do not copy the directory.
Open official source →Tier 1active
Restaurant Safety
OSHA
- worker safety · restaurant operations
- united states
- U.S. government work
Safety education is not a substitute for the controlling workplace standard or professional inspection.
Open official source →Tier 1active
Florida Cottage Foods
Florida Department of Agriculture and Consumer Services
- cottage food · business licensing
- florida
- Official state guidance
State guidance only; verify product eligibility, sales limits and local requirements at decision time.
Open official source →Tier 1active
Florida Food Service Licensing Guides
Florida DBPR
- food service licensing · restaurant operations
- florida
- Official state guidance
Use for orientation; the agency and local authority determine the actual license path.
Open official source →Tier 2active
Recipe structured data vocabulary
Schema.org
- recipe import · structured data
- global
- Schema.org terms
Structured markup enables parsing but does not grant rights to republish recipe text or images.
Open official source →