Flour Is a Raw Food and Other Safety Facts

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You may not realize it, but most flour is a raw food. And it hasn’t been treated to kill any bacteria (germs) it may contain. Cooking and baking is what kills any bacteria in flour, as well as in raw eggs that are often used with it.

To stay safe, don’t eat or taste raw (uncooked) flour, dough or batter. Also, don’t let children use raw dough for crafts or “play clay.” Even if children don’t eat the dough, they may put their hands in their mouth after handling it.

Flour Facts

If you knew about the dangers of eating raw meat, poultry or eggs and didn’t know about flour, you’re not alone.

Most people in the U.S. don’t think raw flour is risky to eat, according to a 2019 U.S. Food and Drug Administration survey.

But it could make you sick. Over the years, the FDA and the Centers for Disease Control and Prevention have investigated several outbreaks of foodborne illness (food poisoning) involving raw flour or products that contain flour, like cake mixes and cookie dough. In those investigations, either the bacteria Salmonella or Escherichia coli (E. coli) caused food poisoning, which can have mild to serious symptoms.

How does bacteria get into flour? The flours most used for baking and cooking at home are made directly from raw grains. They can be exposed to bacteria in the field or when the flour is being made. Grains are harvested, ground and sometimes bleached, but processing raw grains into flour does not kill bacteria.

Flour Safety Tips and Other Resources

Both the FDA and the CDC have for years reminded people not to eat raw dough. Both agencies have helpful resources on their websites for safely using flour and eggs. Here’s a sampling of do’s and don’ts from cooking to cleanup and shopping to storing.

• Handling Flour Safely: What You Need to Know
• What You Need to Know About Egg Safety
• Raw Flour and Dough (CDC)
• Food Safety Tips for Healthy Holidays
• Safe Food Handling

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