We have a couple of Thermos branded flasks like the pic attached, which my dd uses for lunch. However, she says that the food isn't that hot when she goes to eat it (pasta or soup)
I'm prepping this at 7am and she eats about 12.30/1pm so some 5.5/6 hours later. I pre fill the flask with boiling water whilst I'm making the pasta/soup too. The food is super hot when I fill it.
Anyone recommend one that is better???