Food Storage Containers (10-Pack)
10-pack of polypropylene food storage containers. BPA-free. Microwave and dishwasher safe. Widely available at grocery and mass-market stores.
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 6, 2026
The kitchen is the room with the highest concentration of plastic-chemical exposure sources: plastic wrap, cutting boards, food storage containers, utensils, and appliances. Heat dramatically accelerates chemical leaching — a plastic container microwaved once can release millions of microplastic particles into food.
Why We Rated It This Way
Glad's plastic containers are BPA-free but can still leach microplastics and other chemicals when microwaved. The 'microwave safe' label means the container won't melt — not that it's safe to heat food in. Glass or stainless steel is a much safer choice for reheating.
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.
microplastics
Polypropylene leaching when microwaved
Potential endocrine disruption
- ↳No Plastic in Nature: Assessing Plastic Ingestion from Nature to People — Environmental Science & Technology, 2019
- ↳Raman microspectroscopy detection and characterisation of microplastics in human breastmilk — Polymers (MDPI), 2022
- ↳Exposure to microplastics and human reproductive outcomes: A systematic review — BJOG: International Journal of Obstetrics and Gynaecology, 2024
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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