Food Grade Storage Containers: What are they Anyway?

When you go to store your bulk foods, it is recommended that you store your food in "food grade" containers. Well, what does that mean? Can't I use just any ole plastic bucket? No, not really. To keep yucky chemicals, smells, etc. from leaching into your store, you should use food grade buckets. Here is a quick synopsis of what that means:

What Is Food Grade Plastic?
The U.S. Food & Drug Administration (FDA) requires that plastics used in food packaging be of greater purity than plastics used for non-food packaging. This is commonly referred to as food grade plastic. Plastics used to package pharmaceuticals are held to an even higher standard than food grade.
Food grade plastic does not contain dyes or recycled plastic deemed harmful to humans. However, this does not mean that food grade plastic cannot contain recycled plastic. The FDA has detailed regulations concerning recycled plastics in food packaging.
Another aspect of food grade plastic is matching the appropriate type of plastic to the food in question. Foods that are highly acidic or that contain alcohol or fats can leach plastic additives from the packaging or container into the food. As a result, you should only use plastic containers that are FDA approved for the particular type of food the plastic will come into contact with.
Finally, it should be noted that a plastic container can no longer be considered food grade if it has been used to store non-food items like chemicals, paint, or detergent.

If you are considering the purchase of a container from some place other than a kitchen or restaurant supply store, and the container is not clearly labeled as "food safe" or being made of food grade plastic, then you should assume that it is not food grade and you should not brine or store food in it—unless you line it with a food grade plastic bag.