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What are Coffee Joulies made of?

Last Updated: Aug 30, 2013 05:30PM EDT
Joulies are made of 18/10 stainless steel, the highest grade stainless steel used in silverware production, ensuring that they are completely safe, will last forever, and will keep their polished finish for a long time. Inside each stainless steel shell is a proprietary  'phase change material' that melts at 140f. This material is what stores and release heat in order to keep your coffee at the prefect drinking temperature for longer.

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