Joe’s auto-sealing Contigo mug wasn’t working properly. Moisture was getting caught between the mug’s layers, causing leaks. When Joe wrote to Contigo, he quickly received an unexpected reply from the mug’s designer. Joe writes:
I’ve been using your Autoseal mug for a few months now, and have some quality concerns regarding the product. I’ve already owned two of them – I had to return the first one, and will now likely have to do the same with the second.