Glad Food Storage Containers
Plastic food storage containers. BPA-free polypropylene. One of the most popular food storage container brands.
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 5, 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
Plastic food containers are a major source of chemical exposure, especially when used in the microwave. Even BPA-free polypropylene can leach endocrine-disrupting chemicals when heated. Glass containers are a simple and affordable upgrade.
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.
BPA
BPA substitute chemicals in polypropylene
Endocrine-disrupting chemicals leach into food, especially when heated
- ↳Bisphenol A leaching from polycarbonate bottles under real-use conditions — Environmental Health Perspectives, 2009
- ↳Bisphenol A and human health: a review of the literature — Reproductive Toxicology, 2013
- ↳The Endocrine Disruptor Bisphenol A (BPA) Exerts a Wide Range of Effects in Carcinogenesis and Response to Therapy — Current Molecular Pharmacology, 2019
Microplastics
Polypropylene container material
Microplastic particles transfer to food during storage and heating
- ↳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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