Do you use a thermos bottle when you go camping? A thermos is handy on these chilly fall days when you want a ready-to-eat hot meal or drink. However, be sure to read any directions that came with it. Some warn against using milk-based drinks or things like tomato soup. According to customer service rep Jerry Brewington at Zojirushi America Corp, "These items can gum up the the stopper cap and cause leaking or malfuntion in the unit." So be sure to read any product labels/instructions and know what foods (if any) you should avoid.

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