The Health Risks of Sulfur Dioxide in Dried Fruits


Sulfur dioxide is a toxic gas that can cause life-threatening injuries if inhaled. Perhaps this causes some people to worry about the sulfur dioxide used to preserve dried fruit. There are no studies proving that sulfur dioxide-treated dried fruit increases the risk of health problems in healthy adults. Those suffering with asthma, however, may experience worsened symptoms shortly after consuming products treated with sulfur dioxide.

Dried fruit
Dried fruit (Image: Brand X Pictures/Brand X Pictures/Getty Images)


Sulfur dioxide is a gas created by burning coal or oil, which contain sulfur, reports The gas has an unpleasant smell similar to rotten eggs and is used as a disinfectant and a bleaching agent as well as a food preservative. Sulfur dioxide is dangerous when inhaled and long-term exposure to the gas can cause serious illness and even death.

Burning coal
Burning coal (Image: Hemera Technologies/ Images)


According to, sulfur dioxide is used to prevent spoiling and browning of dried fruit and vegetables. Treating fruit with sulfur dioxide prior to drying will also help preserve the color and flavor of the fruit during the drying process to create a more attractive appearance.

Dried fruit and vegetables
Dried fruit and vegetables (Image: Jupiterimages/Polka Dot/Getty Images)


Trace amounts of sulfur dioxide can be found in some dried fruit and vegetables, soft drinks and in many alcoholic beverages. Sulfur dioxide is a commonly used food preservative and is not considered dangerous to healthy people, according to the U.S. National Library of Medicine.

Soft drinks
Soft drinks (Image: Mario Tama/Getty Images News/Getty Images)


Exposure to high levels of sulfur dioxide can cause breathing problems, emphysema, chronic bronchitis and respiratory disease. The levels of sulfur dioxide found in dried fruit are very low and should not cause any of these serious health problems, according to the Healthy Child Healthy World website. Asthmatics may experience a skin rash, upset stomach or an asthma attack after consuming food treated with sulfur dioxide.

Asthmatics may experience an upset stomach
Asthmatics may experience an upset stomach (Image: Jupiterimages/Polka Dot/Getty Images)


Those who are concerned about potential health risks associate with sulfur dioxide found in dried fruit can purchase fresh fruit or unsulfured dried fruit. Natural food stores generally carry dried fruits that have not been treated with sulfur dioxide. These fruits are often darker in color and may have a different texture than sulfured varieties. They also do not stay fresh as long as sulfured fruits and need to be consumed soon after drying.

Purchase fresh fruit
Purchase fresh fruit (Image: Noel Hendrickson/Digital Vision/Getty Images)

Related Searches


Promoted By Zergnet


You May Also Like

Related Searches

Check It Out

This Is the Beauty Routine of a Yelp Sales Manager

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!