A2 Buttermilk is made from pure A2 cow curd without any preservatives. Our cows are grzed in the forest with natural grass and medicinal herbs. Buttermilk is completely unique in taste. A2 Desi Cow Buttermilk is freshly made from desi cow curd for original taste and freshness. We don’t use any kind of preservatives or store longer to retain shelf life.