What is essential to do while pouring draft beer to ensure quality?

Pouring draft beer correctly is crucial to maintain its quality and enhance the drinking experience. Starting to pour at a 45-degree angle is essential because it allows the beer to flow gently down the side of the glass, which minimizes excessive foam. As the glass fills, the angle can be adjusted to an upright position as the beer reaches the desired fill level. This technique helps in achieving a proper head of foam, which is important because a good head can enhance aroma and carbonation retention.

The formation of foam is critical to the overall sensory experience of the beer, as it captures volatile aromatic compounds. Therefore, pouring properly helps to balance the volume of beer with head, ensuring that the final product is both visually appealing and flavorful. By starting with a 45-degree angle and then adjusting the glass position, the server can prevent over-foaming and provide a well-poured pint.