How to take care of your Stem Vacuum Flask

Washing Your Vacuum Flask

STEM flask interiors are electropolished to create a smooth, gleaming surface. This helps it prevent the accumulation of dirt, and reduces odor buildup from drinks. Hand wash with water and soap, then air-dry or wipe dry.

  • Avoid direct fire. 
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  • Do not place near heat sources such as gas stove, ovens and heaters. 
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  • Do not use in the microwave.
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  • Do not use in the dishwasher or dryer.
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