Bests & Worsts Reviews from Amazon

I bought this Omiebox April 25, 2018 so my 6 yr old daughter can have a decent hot meal during lunchtime. I waited until now to provide a good review of this product after having used it for a few months. Overall, I am satisfied with the product's claim and this Omiebox gives me another healthier option to provide a better lunch to my daughter instead of sandwiches all the time. Everyone wants to know are the meals hot or warm after 4 hrs? My daughter always tells me her lunch is warm when she eats. So, I decided to put the OmieBox to the test. In our school district, Elementary School starts at 0900 and her lunch period is 1230, so I always finish preparing her hot lunch between 0815-0830. The OmieBox Test I poured boiling hot water into the thermos container and let it sit for 10 mins (per guidelines) and then I poured her hot meal into the thermos container and measured the temperature. (All temperatures were measured in Fahrenheit). As evidence from the beginning temperature, the food was 166.1 degrees. I then accounted for the time duration from the food preparation (0815) and school start times (0900) and her lunch period (1230) and other possible delays (15 mins). So, I tested the food temperature at 4.5hrs from the food preparation time (0815). As evidence from the ending temperature, I was surprised that even at 4.5hrs, the food was decently warm at 101.3 degrees. Cleaning? I've never had any problems cleaning the OmieBox. Everyday, I remove the rubber gasket from the thermos lid and gently clean it with warm soapy water, so mildew or mold doesn't grow underneath, and I clean the rest of the OmieBox in similar fashion. I've yet to replaced any broken parts of the OmieBox from daily cleaning. However, there is one thing I don't like about the lid. Sometimes while washing the lid, water does get inside the lid and its not easy to drain (pictured), so I wonder if mildew and mold is growing inside. Suggestions? Although I am very pleased with this product compared to other products on the market, I wish the thermos and the thermos lid was better insulated, so one does not have to use boiling hot water to help food stay warm 4 hours later.