Instruct: Classify the given review as either positive or negative.
Query: poor technology

This looks like a good idea: save energy by using a thermos for hot water/hot coffee.Inconveniences compared to conventional carafe-type coffemakers:The water cools off, there's no temperature or level gage for the thermos.It takes two-hand to get the thermos set into the coffeemaker.The thermos top has to be totally shut for it to work, but must be removed for filling with water.