TIGER JNP-1800 10-Cup Uncooked Rice Cooker and Warmer
Medium-high risk; no nonstick coating means minimal Teflon-family coating risk.
The Tiger JNP-1800 uses a stainless steel inner pot and non-coated heating elements, avoiding nonstick-based PFAS risk. Tiger offers no PFAS information but the material composition presents lower inherent risk.
The better-graded swap
Zojirushi
Zojirushi Neuro Fuzzy Rice Cooker & Warmer
75/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Stainless steel inner pot and non-coated heating elements
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Mineral and microbial buildup in heating element
Uncoated stainless steel and uncoated heating elements can accumulate mineral deposits from hard water, and the warm, moist environment may support minor bacterial growth if the cooker is not dried fully between uses. Regular cleaning and proper drying mitigate this.
Stainless steel corrosion and iron leaching
Low-grade stainless steel or scratches exposing the underlying metal can theoretically allow minor iron or nickel leaching if exposed to acidic foods (e.g., vinegar) or chlorine-rich water for extended periods, though this is rare at normal cooking temperatures and contact times.
What’s reassuring
Bare uncoated material
Recorded as a bare, uncoated material with no surface coating or treatment.
Aluminum leaching (not present)
This model uses stainless steel, not aluminum, so no aluminum migration into rice is a concern.
Teflon-type coating/nonstick coating degradation and fume release
No Teflon-family coating nonstick coating is present, eliminating the risk of Teflon-type coating off-gassing at cooking temperatures or from mechanical wear.
Lead
The inner pot is bare stainless steel with no decorative glaze, ceramic lining, or enamel coating that could contain heavy metals.
Source, ATSDR ↗The full breakdown
What it's made of and why it matters
The JNP-1800 uses a stainless steel inner pot and uncoated heating elements, which avoids the primary chemical leaching risk found in nonstick-coated rice cookers. Stainless steel is chemically stable at typical rice-cooking temperatures (under 212°F) and does not release harmful substances into food or water during normal use. The lack of any Teflon-family coating or ceramic nonstick layer means no Teflon-type coating off-gassing or lead/cadmium glaze concerns that plague some competitors.
The brand's record and disclosure
Tiger is a well-established Japanese appliance manufacturer with no documented product recalls or major safety controversies related to chemical leaching in rice cookers. The brand has not published public PFAS reduction commitments or full material transparency statements, which reflects a general gap in disclosure across the small-appliance sector rather than a known safety failure. No third-party testing has flagged this model for contamination or unsafe material composition.
How it compares in its category
Most budget and mid-range rice cookers use ceramic or nonstick-coated inner pots, which carry lower but non-zero risks of glaze contamination or Teflon-type coating degradation over years of use. The JNP-1800's bare stainless steel design is more durable and chemically inert than coated alternatives, though it may show minor discoloration or staining from mineral-rich water over time. This places it in the lower concern half of the category for long-term chemical safety.
If you buy it
Use distilled or filtered water when possible to reduce mineral buildup on the stainless steel surface; visible staining does not indicate a safety problem. Replace the heating element or inner pot only if visibly corroded (small surface rust is normal and not a material linked to PFAS). Avoid prolonged storage of cooked rice in the cooker beyond 12 hours; transfer leftovers to a glass container. Clean the pot with mild detergent and soft scrubbing to avoid scratching, though minor scratches in stainless steel pose no leaching risk.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Tiger has made none
Formulations change between production runs, so check the current label. How we grade.
More rice cookers grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.