Food use
Food-use source coverage is present in the current record.
The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.
Potassium sulfite
EPA CPDat observed this chemical in 1066 composition records across product categories including Specialty occupational products, Medical/dental, Vehicle.
Research docs0Claims0Sources5FunctionAntioxidant • PreservativeIdentifierDTXSID80889532
Concern score
Not assessed — no hazard data yet.
How we scored this
The concern value reflects this ingredient's chemical identity — its hazard profile from the published classifications and regulatory status below — not the safety of a product it appears in. A score near 40 is the baseline for ingredients with no specific signal (water scores 40 by design), so a mid-range value is not a safety verdict.
Concern score 5/100 · limited confidence.
Where it appears
Prevalence of Potassium sulfite in our catalog (epa_cpdat).
Products
1,066
Brands
5
Specialty occupational productsMedical/dentalVehicleBatteriesHome maintenancePersonal care
Typical roles
AntioxidantPreservativeReducing agent
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Good fit
Fragrance avoidance
No fragrance-linked caution surfaced in the current profile.
Allergen profile
Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.
- SulphitesContains · Oral (ingested)
Source: chemindex_name_match
Linked research
Primary documents currently linked to this ingredient record.
No linked research documents are attached to this ingredient yet.
Extracted claims
Structured claim signals pulled from linked ingredient research.
No extracted claims are attached to this ingredient yet.
Regulatory status
Published jurisdiction-level classifications and regulatory designations for this ingredient.
US
EPA
EPA CPDat observed this chemical in 1066 composition records across product categories including Specialty occupational products, Medical/dental, Vehicle. EPA CPDat classifies this chemical for functional uses including Preservative, Reducing agent, Antioxidant.
Effective: Mar-19View source →
US
FDA
openFDA substance registry classifies this ingredient as chemical.
Effective: 2026-05-24View source →