Plastic Food Storage Containers
Airtight and leak-proof plastic containers made from polypropylene. Marketed as BPA-free.
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
While convenient and popular, these containers are made entirely of plastic, which raises concerns about chemical leaching and environmental impact.
Why We Rated It This Way
LocknLock's Plastic Food Storage Containers is made from Polypropylene. Certifications: BPA-free (company claim).
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
LocknLock Plastic Food Storage Containers
Potential leaching of chemicals from polypropylene plastic.
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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