Why does Jolly Ranchers make your mouth tingle?

Jolly Ranchers contain citric acid, malic acid, and fumaric acid. These acids react with the moisture in your mouth to create hydrogen ions, which then bind to receptors on your tongue and cheeks. This binding triggers a signal to your brain, which interprets it as a tingling sensation.

Citric acid, malic acid, and fumaric acid are all common food additives that are used to add tartness and flavor to a variety of foods and beverages. They are also found naturally in fruits and vegetables. While these acids are generally safe to consume, they can cause irritation in some people, especially those with sensitive mouths or allergies to these acids.

The tingling sensation caused by Jolly Ranchers is typically mild and harmless. However, if you experience any pain, swelling, or difficulty breathing, you should stop eating the candy and talk to your doctor.