The Campingaz CP 250 is a slim, aerosol-style gas cartridge for Camp'Bistro type portable cooking stoves and other appliances made for CP 250 cartridges. It holds 220 g of a high-performance butane and isobutane mix. The isobutane keeps the pressure up better than plain butane in cool weather, so the stove keeps a steadier flame on a chilly morning or at altitude. A self-sealing safety valve means the cartridge can be taken out of the stove and refitted when it is not empty, which makes it easier to pack and transport. It suits moderate or occasional use at the campsite, on a picnic or as a backup cooker at home. Store and use it away from heat and keep it out of direct sun.