Originally Posted by
rumrunn6
add a pinch of salt and microwave your bottle a little to warm the water. play with the time until you get the right temperature
don't microwave plastic bottles.
actually, for that matter, don't pour any liquid over 80c into plastic bottles, unless you want to drink all the chemicals that leached out.
Best solution I have found is to keep the bottle inside the jacket or inside a pannier or trunk.