Wash shelves and bottom of refrigerator once a week with clear warm water, and wipe dry, if shelves are not movable. If shelves can be moved, take them out, and wash with soapsuds, and scald, and wipe dry. When cool, return to their places. In every case see that crevices are thoroughly cleaned. Once in two weeks take ice all out, and wash ice chest well; also clean waste pipe by probing with a white cloth tied onto the end of a stick that is certain not to break, - a piece of an old whip stock is good.