Reusable Grocery Bags Are Great for the Environment but Can Make You Sick if Contaminated

Some bags allow meat juices to leak through while others soak up moisture and become bacteria breeding grounds

If you use reusable grocery bags to reduce waste and support North Carolina’s environmental goals, you should also protect your health. Heavy-duty bags make it easy to carry fresh produce, meats and dairy, but if they are not cleaned and organized properly, cross-contamination can spread harmful bacteria.

Bag construction affects food safety

Reusable bags vary by material and weave tightness. Canvas and fabric bags may absorb meat juices, creating a breeding ground for bacteria like Salmonella and E. coli. Insulated or non-woven polypropylene bags often have smooth interiors that resist liquids and are simpler to wipe or sanitize. When selecting bags, choose ones labeled food-safe or machine washable on a sanitary cycle.

Clean bags regularly

Even if a bag only carried pre-packaged goods, microscopic drips and crumbs can linger. Wash fabric bags in hot water with a small amount of bleach or a food-safe detergent, then air dry completely. Non-woven and insulated bags can be wiped inside and out with a bleach-water solution (1 tablespoon bleach per gallon of water) and dried before next use. In North Carolina’s humid summers, quick drying in open air helps prevent mold growth.

Designate bags by food type

Keep separate bags for raw meats, produce and pantry items. Tie a colored ribbon or use labels on handles to mark meat bags. Alternatively, buy dedicated insulated totes for chilled and frozen foods, this protects temperature-sensitive items and makes identification simple at home.

Store and handle bags safely

After unpacking groceries, store bags in a well-ventilated area. Avoid leaving damp bags in enclosed spaces like car trunks, where heat and humidity in North Carolina can accelerate bacterial growth. Hang bags to air out or place them in a laundry area until they are washed.

Local resources and guidelines

• NC Cooperative Extension: free food safety workshops and cleaning tips
• NC Department of Agriculture & Consumer Services: guidance on household food handling
• County health departments: information on preventing foodborne illness at home

By choosing easy-clean bags, washing them frequently and separating food types, North Carolina consumers can enjoy the eco-benefits of reusable bags without risking contamination.