The thermos how heat preservation more long?
At the same time to do a good job of warm pot, kettle too cold effect is not good. If it is not good that is itself the problem of the kettle.
Such as received is equivalent to direct contact with the hot water and the outside world.
Don't fill too slow Don't let the plug contact water, because the air is a good thermal insulation, will heat the air in the jar and bottle stopper separated heat preservation effect is better
