Show formula for baffling wives ask why theres tin in cans MAYWOOD ILL scientists have found that only the exceptional woman perhaps one in a thousand knows why tm tin is used in the cans she carries home from the grocery store every day dr B S dark clark director of re search for american can company says that when research specialists talk about canned foods before women s clubs and other groups 01 ol typical housewives the women al most invariably give the wrong answer as to why tin not some other metal is used it doesn doean t make much difference as long as they know from expert ence that the cans are good he commented but those radio quia shows are missing a good bet they d find women answering thai that tin is used because ads itis lightweight because it bends easily into shape because it is shiny and attractive because it is easy to cut with a can opener in fact almost every answer except the right one not that men on an average do any better he added bul but being a man myself I 1 m not acx ious to stress that point the right answer dr claris clark says it s because tin tan has unique and protective qualities which en able it to resist che chemical reaction with the food inside the can and wa with th moisture in the outside air the tin can Is actually a steel can the scientist pointed out the steel is coated on both sides with tin the tin comprises less than 1 per cent of the total metal in the average can he said |