Food Storage Containers
Plastic food storage containers and bags, marketed as BPA-free. Used for general food storage, freezing, and microwaving.
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
Despite being BPA-free, Ziploc products are facing lawsuits regarding microplastic contamination. Polyethylene is a less stable plastic, and its use with food, especially when heated, is a significant concern.
Why We Rated It This Way
Ziploc's Food Storage Containers is made from BPA-free Plastic (Polyethylene). 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
Ziploc Food Storage Containers
Potential leaching of microplastics and other chemicals, especially when heated.
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.
Was this rating helpful?
Get New Ratings in Your Inbox
We add new product ratings weekly. No spam — just science-backed ratings to help you reduce your plastic exposure.