Glass Meal Prep Set vs Brilliance 20-Piece Food Storage Container Set: which is safer?
Pyrex Glass Meal Prep Set is our pick: better on PFAS and on the overall hazard picture.
Our pick
Pyrex
Glass Meal Prep Set
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleMetal lid corrosion and leaching
ReportedSilicone or rubber gasket degradation
ReportedThermal shock fracture from glass
Rubbermaid
Brilliance 20-Piece Food Storage Container Set
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleMicroplastics/polymer degradation when heated
ReportedBacterial/mold growth from seal failure
PossibleCoating degradation and lid material leaching
Where these two actually differ
- We flag Metal lid corrosion and leaching, Silicone or rubber gasket degradation and Thermal shock fracture from glass on the Pyrex and not on the Rubbermaid.
- We flag Microplastics/polymer degradation when heated, Bacterial/mold growth from seal failure and Coating degradation and lid material leaching on the Rubbermaid and not on the Pyrex.
- The Pyrex is borosilicate glass with metal lids (likely stainless steel or aluminum) where the Rubbermaid is Plastic polymer (polypropylene/copolyester blend) with clear lids, which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Pyrex is the one to buy.
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 food storage containers: see the full ranking