Propane canisters are portable containers designed to hold propane gas, a common fuel used for heating, cooking, and powering outdoor equipment. These canisters are typically made of steel or aluminum and come in various sizes, with the most common being 16-ounce and 20-pound options. They are often used with camping stoves, grills, and heaters, providing a convenient energy source for outdoor activities. When using propane canisters, safety is essential. They should be stored upright in a cool, well-ventilated area, away from direct sunlight and heat sources. Proper handling and disposal are crucial to prevent leaks or explosions, making it important to follow guidelines provided by manufacturers and local regulations regarding propane storage and usage.