Oven Safe Food Storage
Durable, oven-safe tempered glass containers with BPA-free plastic lids and silicone seals. Odor and stain proof.
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 8, 2026
Excellent tempered glass, but the presence of BPA-free plastic lids raises some concerns about potential chemical leaching, even if BPA-free.
Why We Rated It This Way
Glasslock's Oven Safe Food Storage is made from Tempered Glass (container), BPA-free Plastic (lid), Silicone (seal). Certifications: US FDA certified, BPA and hormone-free.
Chemical & Health Analysis
Each chemical of concern is broken down below — what it is, where it comes from in this product, what it does to the body, and who is most at risk.
Various plastic chemicals
Glasslock Oven Safe Food Storage
Potential leaching of chemicals from plastic lids.
All health claims are based on published, peer-reviewed research from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.
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