Clean Milk without Expense

The interesting fact emerges that farm workers, not properly instructed in the cleansing of covered pails, were actually getting worse results with them than with open pails :? Buckets, open and covered, were washed by the farm hands with warm water and a cloth in accordance with the usual practice. The milk taken into the covered bucket contained many more bacteria than that taken into the open bucket. When, however, the clean milker who was engaged for the experiment washed the bucket, this difference disappeared, although the clean milker was also using warm water and the same