At home I like to experiment with all kinds of teas, but on the trail I have a perverse preference for Constant Comment, with sugar, please. I tear up the bags, scatter the wet tea, and burn or carry out the empty bags.

Doing SAR, if I had the time, I would brew up a thermos, definitely with sugar. The victim had first dibs on the tea, if appropriate, but about 3 AM, if there was no victim, it would pull me through to the dawn..

Fillable bags sounds like a winner...