Regular Washing
It is easy for these bags to pick up contaminants either from the food that we carry or the environment in which they are transported. For this reason, many food-borne bacteria can accumulate on them and eventually be transferred to the foods we eat or directly to the people who use them. Research has shown that at least half of these reusable bags have been found to have coliform and 12% of them are carrying E. coli. The best way to handle this problem is regular washing, which can significantly reduce the amount of bacteria that can be collected on your reusable shopping bags.
Do Not Cross Pack
This means that you want to be careful not to mix foods or other products in your bags. Raw foods like meat, poultry, and fish should be kept separate from vegetables and other food products. This will protect the foods from leaking into fresh foods and cross contaminating them. Resist the temptation to use these bags for other things besides food items. Carrying around your gym clothes, books, and other items in your reusable shopping bags is a sure fire way to bring contaminants into your food supply.
Store Them Properly When Not in Use
It is easy to think that leaving them in your car is a convenient way to remember them when you're out and about but this could be a dangerous practice. Aside from the fact that the trunk or glove box of your car could have lots of contamination in them there is also the danger that comes from the higher temperatures inside a locked car. These high temperatures can encourage the bacteria that do accumulate to grow much faster on your reusable shopping bags. Make sure that they are stored in a clean, cool, and dry place to prevent any kind of cross contamination.
Always make sure that you buy bags that are made from nylon or some other material that resists lead and other toxic heavy metals as these can also get into your food supply and cause health risks. When you're ready to buy your new bags make sure that you look for those that have been certified to be contaminant-free or at least try to find lead-free reusable shopping bags. This will be very effective in protecting the health of your family while at the same time doing your part to keep the environment free from the contamination of a plastic overload.