138 BACTERIA, YEASTS, AND MOLDS 



Closely associated with these problems are certain other 

 minor questions relating to the kitchen sink. In the 

 ordinary sink a considerable amount of organic material is 

 liable to find its way into the drain and trap. The cloths 

 used for washing dishes are also quite sure to become 

 soiled with various forms of organic material from the food. 

 These materials are liable to bacterial action and therefore 

 will decay and become offensive. Consequently boiling 

 water should be occasionally poured down the sink drain 

 to disinfect the trap as far as possible, and the cloths used 

 in dishwashing should be thoroughly washed in boiling 

 water and dried to prevent them from becoming offensive 

 by furnishing a chance for bacterial growth. 



