Ashford MP Damian Green became milk monitor for the day at a primary school.
Mr Green, the Immigration Minister, took on the new temporary role at the John Wesley Church of England Methodist Voluntary Aided school to celebrate World School Milk Day.
John Wesley was one of thousands of schools across more than 40 countries taking part in the event to encourage children to drink milk.
School milk is free for children in daycare or primary education under five, and subsidised for school students aged five to 11.
John Wesley head teacher Gail Spragg said: “It is also beneficial for our children as it supplements their diet, ensures they are hydrated and helps to build up their immune system.”