A catalytic heating system for heating a beverage or food that comprises: a container for containing the beverage or food and a catalytic combustion assembly for heating the container, with the catalytic combustion assembly comprising a fuel supply assembly having a fuel canister for supplying a fuel gas having a stoichiometric ratio of about 15 to an air mixing injector for injecting the fuel gas into an elongate sidewall enclosure having curved shape and defining an enclosed catalytic combustion chamber where a catalytic combustion process is generated, causing the complete combustion of all of the fuel gas and heating the container containing the beverage or food.