Getting a four month old drink, cold milk

My baby had reflux really badly when he was a newborn and I had to heat up his milk for it to go down properly. He would drink it cold, but it would cause issues so we had to start warming his milk and now he won’t drink it cold at all and he just screams for about 10 minutes while I am trying to heat up his milk. any advice on how to get him to drink cold milk?