Butter Sticks perfect for cooking and baking. Milk from grass-fed cows. Imported - 1st quality. In Ireland, cows graze on the green pastures of small family farms. This milk is churned to make Kerrygold Pure Irish Butter. Made with milk from grass-fed cows not treated with rBST or other growth hormones (no significant difference has been shown between milk derived from rBST-treated and non rBST-treated cows).