Raw milk, or unpasteurized milk, was consumed until the 1900s.
According to the National Library of Medicine, this altered owing to cattle-borne TB.
Pasteurization was developed to prevent milk-borne diseases over time.
While the reasons for this strict process were understood, public opinion is shifting.
Raw milk is apparently healthier now that bovine TB is no longer a problem, says Healthline.
Health concerns prevent certain states, including Delaware, from selling raw milk.