What does a proper beer head look like after pouring?

A proper beer head after pouring typically measures between 1 to 2 inches high. This height indicates that there is an appropriate amount of carbonation and that the beer has been poured correctly. A good head is essential because it helps to release the beer's aroma and enhances the overall drinking experience.

Additionally, a head that is too low or nonexistent, as seen in other options, can suggest several issues, such as improper pouring technique, lack of carbonation, or a beer that has gone stale. A head that exceeds 4 inches may indicate overly aggressive pouring, leading to excessive foam that dissipates quickly, which is generally undesirable. A flat beer without bubbles also suggests a lack of freshness and carbonation, which detracts from the beer's intended characteristics.

Thus, a 1-2 inch head is ideal, as it strikes a balance between appearance and performance, showcasing the beer's aroma and contributing to its overall enjoyment.