EVERY EMERGENCY PLAN NEEDS EXTRA SOURCES OF FUELHexamine is a safe, clean burning fuel, that's easy to ignite, odorless, smokeless and non-toxic. Perfect for cooking and heating when stealth or staying indoors is required in a SHTF situation. Includes 24 tablets.This is an essential item for camping, backpacking and short-term emergencies. This product is best used with Folding Camp Stove. To Boil Water, Follow These Simple Guidelines 1 cup of water will boil with 2 fuel tablets in 3 minutes 2 cups of water will boil with 2 fuel tablets in 5 minutes These solid camping fuel tablets will burn for 8-9 minutes. Heating times for boiling water are approximate with no wind. When outdoors, wind can be a factor increasing the time to boil.Each Hexamine solid fuel tablet is 7/8 inch diameter x 1/2 inch thick and weighs 0.2 ounces. WARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov/product