Awesome! 5 hours later and it's still hot!

This is my partner who had the idea to buy the isothermal box so she could eat hot not too expensive lunch (avoiding sandwiches, or the restaurant). And then one day it was I who used while working outside all year and had the bad habit of eating sandwiches almost every day on construction sites, I changed this practice.

Now I prepare my lunch the night before, and I warmed 4 1min 30 times in the microwave, so it's very hot, and very uniform. Meanwhile, there, I boil water and fills the box that I cover with a plate. I wait 3-4 minutes. After my warm meal, I empty the water and decanted into my lunch box before closing it.

More than 5 hours later, it's still hot! I eat 3 times its content in a tupperware box, being careful to close the isothermal box between each, just that it does not cool down. And the best is that the more you eat, the more they warm, the bottom of the box is much hotter than the top.

I'm not ready to eat again sandwiches as often as before.