Gallon Freezer Bags (30-Count)

Name: Gallon Freezer Bags (30-Count)
Brand: Ziploc

PFR Grade

Poor — significant plastic content, use with caution

LDPE and LLDPE plastic. BPA-free but can leach other chemicals. Single-use plastic that contributes to microplastic pollution. Ziploc is the most widely used food storage bag in the US.

PFR Caution

30-count gallon storage bags made from LDPE plastic. BPA-free. The most popular food storage bags in the US.

Score Breakdown

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.

Materials

Packaging

Transparency

Durability

$8See Safer Alternatives in Kitchen

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

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High Exposure Risk — Why This Product Category Matters

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.

Synthetic Plastic Content

100%

synthetic plastic by weight

Why We Rated It This Way

Ziploc bags are BPA-free but still leach microplastics and other chemicals into food, especially when used with warm or fatty foods. As single-use plastic, they also contribute significantly to environmental plastic pollution.

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.

Contains:LDPE/LLDPE plastic

microplastics

Source

LDPE plastic leaching into food

Health Risk

Potential endocrine disruption

Who Is Most At RiskEveryone who stores food in plastic bags

Peer-Reviewed Sources

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.