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Frequently Asked Questions
I saw this on Ziploc.com and thought you'd enjoy it, too.
NOTE: We never rent or sell email addresses. We will not retain your friends’ email information. For more information, check our
Wondering what a Ziploc® brand Bag is made of? How safe they are? Or how to use them? All the answers are here. Just click on a question to see.
Fresh Produce Bags
Vacuum Freezer System
I recently heard media reports that plastic products contain a chemical that can encourage prostate cancer. Do SC Johnson's plastic products contain BPA (bisphenol A)?
A recent study conducted and published by the University of Cincinnati found that the estrogen-like chemical BPA (bisphenol A) has been shown to encourage the growth of a specific category of prostate cancer cells. BPA is commonly used in the manufacture of certain plastic products, such as food-can coatings, milk-container liners, food containers, and water-supply pipes. As a result, media have been reporting on this study and the fact that this chemical is commonly found in plastic food storage containers.
SC Johnson does not use BPA in its plastic products, Ziploc® brand Bags and Containers.
SC Johnson is a leader in providing high-quality products. All of its products are extensively evaluated for toxicity and safety and comply with—and often even exceed—applicable quality and safety regulations.
For more information, please visit
I have read an email that warned consumers about the alleged dangers of using Ziploc® brand products in the microwave. Is this information true?
In 2002, we became aware of an email that was being widely circulated, which warned consumers about the alleged dangers of using plastics in the microwave. This email claimed that the combination of fat, high heat, and plastics releases dioxin into the food and ultimately into the cells of the body, thereby increasing the risk of producing cancerous cells. We researched these claims and it is clear that the information is misleading, and unnecessarily alarms consumers.
Ziploc® brand products are 100% dioxin free. You also should be aware that dioxins can be formed only when chlorine is combined with extremely high temperatures, such as 1,500°F, which even the most powerful consumer microwave ovens are unable to produce.
Our Ziploc® brand products can be used with confidence when label directions are followed. All Ziploc® brand Containers and microwaveable Ziploc® brand Bags meet the safety requirements of the U.S. Food and Drug Administration (FDA) for temperatures associated with defrosting and reheating food in microwave ovens, as well as room, refrigerator, and freezer temperatures.
Like all Ziploc® brand products, Zip’n Steam® Bags are dioxin free. Additionally, they are specially designed for microwave use and meet the safety requirements of the U.S. Food and Drug Administration (FDA) for temperatures associated with cooking food in the microwave when label directions are followed.
Please help us alleviate consumers' concerns and share these facts with those who forwarded this misleading e-mail to you, and to whom you may have sent it. Thank you for giving us a chance to set the record straight.
The containers' packaging reads "Microwave safe;" are all Ziploc® brand Containers safe?
Yes. Ziploc® brand Containers have always been microwave safe for defrosting and reheating in the microwave. This includes both Ziploc® brand Containers and Ziploc® brand Twist ‘n Loc® Containers.
Can I boil in Ziploc® brand Bags?
No. Ziploc® brand Bags are not designed to withstand the extreme heat of boiling.
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