What Foods Make Electricity?

By Meredith Jameson
Lemons are a good source of electricity.
Hemera Technologies/AbleStock.com/Getty Images

Some fruits and vegetables can conduct electricity, often providing a current strong enough to act as a battery. Foods that produce electricity are usually high in acidity or potassium. Experimenting with foods that make electricity can be educational for children.

Citrus Fruit

Jupiterimages/Photos.com/Getty Images

The acidity of citrus fruit juice acts as an electrolyte that conducts electricity. Citrus fruits such as oranges, grapefruits, limes and lemons have high acidity levels. One lemon can produce 7/10 of one volt of electricity. Electrical power increases as you connect more fruits.

Vegetables

Hemera Technologies/AbleStock.com/Getty Images

According to the website MadSci.org, one raw potato has 407 milligrams of potassium, which acts as a conduit for electrical power. Potatoes may also have a higher number of ions that can produce electricity. Other vegetables that conduct electricity due to their potassium and ionic content are tomatoes, carrots, sweet potatoes and cucumbers.

Pickled Foods

Hemera Technologies/AbleStock.com/Getty Images

Foods soaked in brine or otherwise pickled, such as pickles, conduct electricity due to their salt content. Salt is high in ions and conducts electricity. Foods high in salt content will produce electricity.