My family does about 30 bushels of tomato sauce every year and some other things too...we do it all outside...we have propane burners, big pots, etc...and it is the best thing ...just hose down the garage floor or the back patio and we are done..we also cooked 12 lobster at a time in these pots and corn of the cob..the burners are not too expensive...and saves your indoor appliances...