Review on Portable Electric Thermos Heating Stainless by Holly Hernandez

Easy to use. It's not a cup. I remind you that this is not a cup. Only use it to heat water. The top isn't needed when heating water, but it helps keep the temperature warm. The top isn't the best. It is not designed to carry liquids so it may leak into your pocket. Heats water fairly quickly. I'm a flight attendant so this is perfect and fits on my EZ Bag lunchbox. Very wearable. Revain has smaller water heaters that can be stacked, but the water ends up tasting like plastic. This water heater will have a normal taste after you clean it and use it for a few times.