This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

DENVER — Reusable bags may be better for the environment, but are they better for your family’s health?

A recent study showed 97 percent of shoppers admitted they’d never washed their reusable bags.  Yet more than half of bags tested in the study showed dangerous bacteria that could make members of your family sick.

LINK: More stories from our Safe & Secure series

“It might be kinds spooky what’s in your bags,” said registered dietician Jessica Crandall.  “You need to be washing them every single time.”

Wash reusable bags often in the washing machine or by hand with hot, soapy water, Crandall said.

At the grocery store, ask the clerk to put meat, poultry and fish in a separate plastic bag before placing in the reusable bag. This will help prevent juices from leaking and contaminating your reusable bags and food.

Also, be sure to occasionally clean all areas where you place your bags, such as the kitchen counter or table, to reduce cross contamination.

Store bags in a clean, dry location.

Reduce your risk of food poisoning with these tips from Home Food Safety.