Cleaning and Care    What can I fill my bottle with? You can fill your bottle with a variety of beverages. Just rinse out your bottle when changing from one beverage to another. Can I fill my bottle with hot liquids? Do not use hot liquids. The bottle is constructed of a single wall stainless steel, unlike a thermos which is double walled. Hot liquids will transfer the temperature to the outside of you bottle. Can I put my bottle in the freezer? Do not place your bottle in the freezer. As liquids freeze they expand which could damage your bottle. How do I clean my bottle? We recommend hand washing your bottle with a non-abrasive sponge, dish soap and warm water.