Thermal Coffee Mugs work better than other mugs because they have insulating properties. When you put your coffee in your ceramic mug, it can stay warm for quite a while, but it does depend. If you live in a place like mine, for example, it does tend to be quite a bit cooler inside during the winter, even when the heat is working just fine. The ceramic gets cool too fast, thus my coffee must be warmed time and time again. I do not have that problem if I use thermal coffee mugs for my daily brew.