Use and care
Prewarming / Cooling
*You will achieve maximum insulation by rising out the flask with hot or cold water before use, depending on whether the contents are to be kept warm or cool.
*The contents of the vacuum flask should only just reach the neck i.e. the liquid level should be approx. 2-3cm below the spout. This enables optimum insulation, whilst leaving an air gap between the liquid and the lid of the flask. This would also avoid overflowing.
*Ice may be used in this unbreakable stainless steel vacuum thermalware. However DO NOT use carbonated beverages or dry ice. This may cause stopper to eject forcefully.
*Do not put can of beer / beverages inside flask in order to prevent damages and out of shape.