Heat corn oil in a deep-fryer or large saucepan to 375 degrees F.
In a large bowl whisk together milk, flour, beer, salt, and eggs to form a smooth, thin batter. Place the cheese curds, about 6-8 at a time into the batter, stir to coat and remove with a wire strainer. Shake the curds a time or two to remove any excess batter.
Deep-fry the battered cheese curds in batches until golden brown, about 1-2 minutes. Drain on paper towels and serve hot.