Our milk comes from McNamara Dairy in Plainfield, NH www.mcnamaradairy.com. McNamara Dairy is a third generation farm with 140 herd of milking cows. They pasteurize, homogenize, and bottle at their own farm. All milk products produced are grade A and contain no hormones or preservatives. Before bottling, the milk is tested for antibiotics by law. If a cow is sick, a veterinarian is called in and, if necessary, the cow is treated with antibiotics. The milk of that cow is then held until it tests negative for the presence of antibiotics.