Science, Tech, Math › Social Sciences Dairy Farming - the Ancient History of Producing Milk 8,000 years of drinking milk Share Flipboard Email Print Milking a cow wall painting from the tomb of Methethi, Saqqara, Ancient Egypt c2371-2350 BC. Methethi (Metjetji) was a royal noble who held the office of Director of Tenants of the Palace during the reign of the Pharaoh Unas (5th Dynasty). Ann Ronan Pictures - Print Collector / Hulton Archive / Getty Images Social Sciences Archaeology History of Animal and Plant Domestication Basics Ancient Civilizations Excavations Psychology Sociology Economics Ergonomics Maritime By K. Kris Hirst Archaeology Expert M.A., Anthropology, University of Iowa B.Ed., Illinois State University K. Kris Hirst is an archaeologist with 30 years of field experience. Her work has appeared in scholarly publications such as Archaeology Online and Science. our editorial process Twitter Twitter K. Kris Hirst Updated May 30, 2019 Milk-producing mammals were an important part of early agriculture in the world. Goats were among our earliest domesticated animals, first adapted in western Asia from wild forms about 10,000 to 11,000 years ago. Cattle were domesticated in the eastern Sahara by no later than 9,000 years ago. We surmise that at least one primary reason for this process was to make a source of meat easier to get than by hunting. But domestic animals also are good for milk and milk products like cheese and yogurt (part of what V.G. Childe and Andrew Sherratt once called the Secondary Products Revolution). So―when did dairying first start and how do we know that? The earliest evidence to date for the processing of milk fats comes from the Early Neolithic of the seventh millennium BC in northwestern Anatolia; the sixth millennium BC in eastern Europe; the fifth millennium BC in Africa; and the fourth millennium BC in Britain and Northern Europe (Funnel Beaker culture). Dairying Evidence Evidence for dairying―that is to say, milking dairy herds and transforming them into dairy products such as butter, yogurt, and cheese―is only known because of the combined techniques of stable isotope analysis and lipid research. Until that process was identified in the early 21st century (by Richard P. Evershed and colleagues), ceramic strainers (perforated pottery vessels) were considered the only potential method of recognizing the processing of dairy products. Lipid Analysis Lipids are molecules which are insoluble in water, including fats, oils, and waxes: butter, vegetable oil, and cholesterol are all lipids. They are present in dairy products (cheese, milk, yogurt) and archaeologists like them because, under the right circumstances, lipid molecules can be absorbed into ceramic pottery fabric and preserved for thousands of years. Further, lipid molecules which are from milk fats from goats, horses, cattle, and sheep can be easily distinguished from other adipose fats such as that produced by animal carcass processing or cooking. Ancient lipid molecules have the best chance of surviving for hundreds or thousands of years if the vessel was used repeatedly for producing cheese, butter or yogurt; if the vessels are preserved near the production site and can be associated with the processing; and if the soils in the vicinity of the site where the sherds are found are relatively free-draining and acidic or neutral pH rather than alkaline. Researchers extract lipids from the fabric of the pots using organic solvents, and then that material is analyzed using a combination of gas chromatography and mass spectrometry; stable isotope analysis provides the origin of the fats. Dairying and Lactase Persistence Of course, not every person on the earth can digest milk or milk products. A recent study (Leonardi et al 2012) described genetic data concerning the continuation of lactose tolerance in adulthood. The molecular analysis of genetic variants in modern people suggests that the adaptation and evolution of the ability of adults to consume fresh milk occurred rapidly in Europe during the transition to agriculturalist lifestyles, as a byproduct of the adaptation to dairying. But the inability of adults to consume fresh milk may also have been a spur to inventing other methods for using milk proteins: cheese making, for example, reduces the amount of lactose acid in dairy. Cheese-Making Producing cheese from milk was clearly a useful invention: cheese may be stored for a longer period than raw milk, and it was definitely more digestible for the earliest farmers. While archaeologists have found perforated vessels on early Neolithic archaeological sites and interpreted them as cheese strainers, direct evidence of this use was first reported in 2012 (Salque et al). Making cheese involves adding an enzyme (typically rennet) to milk to coagulate it and create curds. The remaining liquid, called whey, needs to drip away from the curds: modern cheesemakers use a combination of a plastic sieve and a muslin cloth of some sort as a filter to perform this action. The earliest perforated pottery sieves known to date are from Linearbandkeramik sites in interior central Europe, between 5200 and 4800 cal BC. Salque and colleagues used gas chromatography and mass spectrometry to analyze organic residues from fifty sieve fragments found on a handful of LBK sites on the Vistula River in the Kuyavia region of Poland. Perforated pots tested positive for high concentrations of dairy residues when compared to cooking pots. Bowl-form vessels also included dairy fats and may have been used with the sieves to collect the whey. Sources Copley MS, Berstan R, Dudd SN, Docherty G, Mukherjee AJ, Straker V, Payne S, and Evershed RP. 2003. Direct chemical evidence for widespread dairying in prehistoric Britain. Proceedings of the National Academy of Sciences 100(4):1524-1529. Copley MS, Berstan R, Mukherjee AJ, Dudd SN, Straker V, Payne S, and Evershed RP. 2005. Dairying in antiquity I. Evidence from absorbed lipid residues dating to the British Iron Age. Journal of Archaeological Science 32(4):485-503. Copley MS, Berstan R, Mukherjee AJ, Dudd SN, Straker V, Payne S, and Evershed RP. 2005. Dairying in antiquity II. Evidence from absorbed lipid residues dating to the British Bronze Age. Journal of Archaeological Science 32(4):505-521. Copley MS, Berstan R, Mukherjee AJ, Dudd SN, Straker V, Payne S, and Evershed RP. 2005. Dairying in antiquity III: Evidence from absorbed lipid residues dating to the British Neolithic. Journal of Archaeological Science 32(4):523-546. Craig OE, Chapman J, Heron C, Willis LH, Bartosiewicz L, Taylor G, Whittle A, and Collins M. 2005. Did the first farmers of central and eastern Europe produce dairy foods? Antiquity 79(306):882-894. Cramp LJE, Evershed RP, and Eckardt H. 2011. What was a mortarium used for? Organic residues and cultural change in Iron Age and Roman Britain. Antiquity 85(330):1339-1352. Dunne, Julie. "First dairying in green Saharan Africa in the fifth millennium BC." Nature volume 486, Richard P. Evershed, Mélanie Salque, et al., Nature, June 21, 2012. Isaksson S, and Hallgren F. 2012. Lipid residue analyses of Early Neolithic funnel-beaker pottery from Skogsmossen, eastern Central Sweden, and the earliest evidence of dairying in Sweden. Journal of Archaeological Science 39(12):3600-3609. Leonardi M, Gerbault P, Thomas MG, and Burger J. 2012. The evolution of lactase persistence in Europe. A synthesis of archaeological and genetic evidence. International Dairy Journal 22(2):88-97. Reynard LM, Henderson GM, and Hedges REM. 2011. Calcium isotopes in archaeological bones and their relationship to dairy consumption. Journal of Archaeological Science 38(3):657-664. Salque, Mélanie. "Earliest evidence for cheese making in the sixth millennium BC in northern Europe." Nature volume 493, Peter I. Bogucki, Joanna Pyzel, et al., Nature, January 24, 2013.