Although I'm not new to backpacking (going back almost sixty years to my boy scout days) I am new to the Esbit solid fuel tablets. In playing around with them, they seem to have great potential for both day hikes and short over-nighters, however, I've found that the unburned tablet emit an unpleasant odor when stored in a pack for any amount of time. Has anybody found a way to wrap them (perhaps in aluminum foil?) so their fumes don't permeate into the other contents of my pack?

Thanks in advance.