Glass Food Storage Containers
Pyrex glass containers are a major upgrade over plastic food storage. The glass body never leaches chemicals. The plastic lids are a limitation — never microwave with the lid on, and consider replacing lids with silicone alternatives.
How scores are calculated
Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.
Packaging (20%): Is the product packaged in plastic? Is it recyclable?
Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?
Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.
This is a rating of this specific product only — not the company. Other products from this brand may score differently.
Last updated: April 4, 2026
Plastic food storage containers leach BPA, BPS, and phthalates into food — especially when heated. Glass bodies eliminate this risk; plastic lids remain a concern.
Why We Rated It This Way
Plastic Tupperware and food containers leach BPA, BPS, and phthalates into food — especially when heated or scratched. Pyrex glass eliminates body exposure; just be mindful of the plastic lids.
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