Stoves are not generally taken on day-trips in caves unless the cave is extremely cold and there are plans to stay for a long period of time without traveling, such as on a survey trip. In most cases a stove will only be needed for extended camping trips underground. The basic classes of portable stoves are white gas, alcohol, and canister. There have been a number of safety issues with white gas stoves in caves, and they can produce soot during the priming process. For these reasons their use in caves is discouraged. There are pros and cons to alcohol and isobutane canister stoves in terms of cost, weight, size, fuel efficiency, and the time needed to boil water. The video below is an exhaustive comparison of two types of alcohol stoves, a traditional canister stove, and a high efficiency Jetboil canister stove.