Hi, Jim! Chinet Comfort® cups are designed to keep up—we just don't recommended heating them in the microwave. However, we sincerely appreciate your feedback and would love to get you connected to a customer service representative so we can learn more about this specific situation. The best way to get in contact is to email MyLife@mychinet.com or call 1-800-847-4129. Thank you!

Thank you for reaching out to let us know about your experience, Jamie. We encourage you to reach out to a customer service representative if you'd like to share any additional feedback. Please email MyLife@mychinet.com or call 1-800-847-4129.