Raw milk is milk which is not pasteurized, and which is drunken by those not willing to treat it so. Raw milk was consumed in popularity before industrial revolution and the invention of pasteurizing in 1864. Medical groups strongly recommend against eating or drinking raw milk, however. In Asia, rules and laws regarding raw milk are rarely put in force; in most of the European Union, raw milk products are legal; in France raw milk and its related products are legal and essential as high quality food. Around the United States, however, there are restrictions and warnings in regard to raw milk and its products.