Field Company Cast Iron Seasoning Oil vs Cast Iron Ultimate Bundle: which is safer?

Cast Iron Ultimate Bundle is the clear pick. Field Company Cast Iron Seasoning Oil carries a failing PFAS grade, and we never recommend buying a failing product.

Field Company Cast Iron Seasoning Oil

Almond Oil

Field Company Cast Iron Seasoning Oil

PFAS grade

D 65/100

Overall grade

F 47/100

Verdict

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Hazard flags

⚑ 3

Material

almond oil

Confidence

92%

PossibleRancidity and oxidative breakdown

ReportedAllergen risk from tree nuts

PossibleResidual solvent contamination (if solvent-extracted)

Why this grade

Our pick

Cast Iron Ultimate Bundle

Coconut Oil

Cast Iron Ultimate Bundle

PFAS grade

A 90/100

Overall grade

B 82/100

Verdict

Buy

Hazard flags

⚑ 2

Material

cast iron, bare or seasoned with coconut oil

Confidence

92%

PossibleIron leaching into food

PossibleRust and surface degradation

Why this gradeBuy

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More cast iron cookware seasoning: see the full ranking