What is the ideal tilt angle for a cask in service?

The ideal tilt angle for a cask in service is approximately 12 degrees maximum. This angle is optimal for maintaining the balance between allowing sufficient access to the contents and ensuring proper drainage of the cask. A tilt of around 12 degrees ensures that the liquid inside can flow adequately, facilitating the pouring process while minimizing sediment disturbance from the cask bottom.

Tilting a cask helps in managing the residual sediment and fruitiness of the beer, enabling the operator to draw clearer beer from the spout without stirring up unwanted sediment. If the cask is perfectly horizontal (zero degrees), it may not drain effectively. At a steeper angle, while it may facilitate easier access for pouring, it risks disturbing sediment and negatively impacting the beer's flavor and clarity. Thus, the 12-degree maximum angle strikes the right balance for both performance and sensory experience.