Thermos flasks, cups and mugs are great for keeping food and drinks cold or hot all day long. But can you throw your dirty Thermos flask into the dishwasher with your dirty dishes? Are Thermos flasks dishwasher safe? If the answer is yes, but you should hand wash anyway, why should you avoid using the … Continue reading Are Thermos Flasks Dishwasher Safe? Yes, But You Should Handwash