Solid fuel stoves

There is nothing to go wrong, which you will appreciate as a backup solution for your first aid kit pocket. The trade-off is time and sensitivity to weather — water takes noticeably longer to heat, and without a windbreak, half of the heat escapes to the sides. Therefore, always set the stove up in a calm spot and use a metal screen. For one heating of half a litre, expect to use one to two tablets depending on the cold and wind.