Show taik TIN CAN chicago superstition long lone held by many housewives i that canned articles must be immediately removed from tho the can to them from becoming tainted Is entirely without foundation declared herbert C hooks secretary of the evaporated milk association in addressing a household science convention here milk from which the water has been been evaporated is as safe in the tin as anywhere else he said tho the efficient and convenient tin can of commerce has ha been much maligned said mr hooks who has made an intensive study of th tho a chemistry of the milk industry in the evaporation process the milk la ii exposed to degrees fahrenholt fahren helt tor for halt an hour this Is degrees more than Is required tor for past pasteurization eurl all bacteria cease to exist the can itself Is ste by intense heat the tin from which it Is made la Is now new and scrupulously clean blean tin itself doos does not affect the contents therefore it cannot be blamed amed 61 it bacteria in a tinned product be gin to work nork when exposed to lae air blame the air not the tin one may as well blame a glass china or silver dish the receptacle in which the milk has been marketed has no at ai all to tc do with it so well established Is 19 this knowledge in tho the evaporated industry that users are instructed to punch two holes in th the e top and use broin from the can a satisfactory proof of the entire safety of this operation it 1 A i |