Originally Posted by bike2math
If you don't actually drink on the ride I suggest a small thermos for your backpack or saddle bags. Much more coffee tight

and mine keeps the coffee warm until I finally finish it in the afternoon.
+1 for the Thremos. I use the Nissan flip top drinkable thermos. I tried sipping once on the ride and YEOWWW!!! That was some hot coffee. Mine keeps the coffee warm well into the afternoon (if I have not finished it by then) and has had no probelm keeping the coffee warm when I commute in the winter. It is about an hour each way.