Does a thermos keep food hot? - Quora

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My thermos flask worked fine for a few months until it suddenly

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Safe and Portable Food Flask -- Made of premium quality 316(Highest Food Grade Level),304 stainless steel BPA and PVC Free.Durable stainless steel

Yelocota Thermos for Hot Food- 27Oz Vacuum Insulated Stainless Steel Soup Thermos- Leak Proof Wide Mouth Food Containers- Food Jar for Hot or Cold

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Do you know any quick tricks to keeping coffee hot for a long