Is it Safe to Store Dry Goods in Plastic?

Yes, it is generally safe to store dry goods in plastic, provided you choose the right types of food-grade plastic containers.

Storing dry goods like flour, sugar, pasta, rice, and cereals in plastic containers is a common and effective way to keep them fresh, protect them from pests, and maintain pantry organization. However, the safety largely depends on the specific plastic grade used.

Understanding Food-Grade Plastic Ratings

Not all plastics are created equal when it comes to food storage. Plastic containers come with a food-grade rating, typically found on the bottom of the container, which ranges from 1 to 7. This rating system gives consumers an idea of how safe they are for storing food.

Safest Plastic Grades for Food Storage

According to guidelines, plastic grades 2, 4, and 5 are the safest for food storage. Using these particular plastics to store food will help prevent accidental toxin ingestion, ensuring your dry goods remain free from harmful chemical leaching.

• Grade 2 (HDPE - High-Density Polyethylene): This plastic is opaque and commonly used for milk jugs, detergent bottles, and some food storage containers. It's considered safe and durable.
• Grade 4 (LDPE - Low-Density Polyethylene): Often found in squeezable bottles, plastic bags, and some food wraps, LDPE is also deemed safe for food contact.
• Grade 5 (PP - Polypropylene): Polypropylene is widely used for yogurt containers, margarine tubs, and many reusable food storage containers. It's robust and can withstand higher temperatures, making it a popular choice for food safety.

Plastics to Be Wary Of

While grades 2, 4, and 5 are recommended, other grades might have potential concerns:

• Grade 1 (PET/PETE - Polyethylene Terephthalate): Commonly used for single-use beverage bottles. While generally safe for initial use, it's often recommended not to reuse them for long-term food storage as they can harbor bacteria and potentially leach chemicals over time or with heat.
• Grade 3 (PVC - Polyvinyl Chloride): Found in some cling wraps and food packaging. PVC can contain phthalates and other chemicals that may leach into food, especially fatty foods.
• Grade 6 (PS - Polystyrene): Used in disposable plates, cups, and takeout containers (Styrofoam). Polystyrene can leach styrene, a suspected carcinogen, particularly when exposed to heat or acidic foods.
• Grade 7 (Other/Mixed): This category includes various other plastics, including polycarbonates, which may contain BPA (Bisphenol A). While many manufacturers now offer "BPA-free" products, it's still wise to research or stick to the safer grades when possible for food storage.

Practical Tips for Storing Dry Goods in Plastic

To ensure optimal safety and freshness for your dry goods, consider these practical insights:

• Check the Number: Always look for the recycling symbol with the number (1-7) on the bottom of the plastic container before purchasing or using it for food storage. Prioritize 2, 4, and 5.
• Choose Food-Grade Certified Containers: Look for labels like "food-safe," "BPA-free," or "food-grade" in addition to the number rating.
• Avoid Heat: Never microwave food in plastic containers that are not explicitly labeled "microwave-safe," as heat can increase the likelihood of chemical leaching.
• Inspect for Damage: Discard any plastic containers that are scratched, cracked, or discolored, as these can harbor bacteria and potentially leach chemicals more easily.
• Wash Properly: Always wash plastic containers thoroughly between uses, preferably by hand with warm, soapy water, or in a dishwasher if labeled safe.
• Store in a Cool, Dry Place: Regardless of the container type, storing dry goods in a cool, dark, and dry pantry helps maintain their quality and extends their shelf life.

Quick Reference: Plastic Safety Grades

For a quick overview of common plastic types and their food safety status:

By being mindful of the food-grade rating and following best practices, you can safely and effectively store your dry goods in plastic containers, ensuring both their freshness and your family's well-being.