By extracting residues from pottery sherds the authors show that it is possible to say whether they had contained dairy or carcass fat residues. Correlation with faunal assemblages showed a good match between the incidence of dairy fat in pottery which implied a strong dairy fraction in the diet and a milking herd implied by the animal bones. They also show that dairy fat was more likely to be found in the smaller pots while carcass fats occurred in the larger ones. The method has demonstrated dairying in England from the fifth millennium BC, and offers a novel way of studying economies with pottery but few animal bones.