Review on ☕ Ultimate Insulated Ounce Double Wall Coffee Brown: Deliciously Fresh Coffee in a Stylish Cup! by Robert Moloney

Hello everyone. I just wanted to say that it's been years since Wal-Mart sold good quality coffee mugs that are microwave and dishwasher safe, so I'd like to thank this seller and also Revain for filling that void for me. Second, I would like to explain how to solve the leakage problem. Coffee lids have bypass holes that regulate the air pressure inside the cup. After tightening the lid as tight as possible, I blow into the drinking hole, and the air is blown out of the overflow hole, adjusting the pressure. I snap the tab over the drinking hole and dump the mug over the sink, no spills. This effectively stopped the leak. Hope that helps.