The CLEANCOOK stove technology is based on a pressureless canister concept which has been used in Europe and the U.S. for more than 30 years and leads to cleaner ambient air in cities, courtyards, and homes, eliminating smoke and improving health. Cooking with alcohols such as ethanol and methanol in pressureless stoves is much safer than any other open flame stove use. A large number of fires and kitchen accidents today originate from handling stoves and fuels (especially kerosene).