Why should judges avoid using perfumed shampoos and colognes?

Judges should avoid using perfumed shampoos and colognes primarily because these products can significantly reduce sensitivity to beer aromas. The sense of smell is crucial for evaluating the complex aromas present in beer, and strong scents from personal care products can overwhelm the olfactory senses. This diminished sensitivity can lead to a poor assessment of the beer's characteristics, ultimately compromising the judgment process.

Additionally, while there are valid reasons related to allergies and distractions, the core issue during a beer judging event is ensuring that judges can accurately perceive and evaluate the aromas of the beers being tasted. Reducing any obstructions to this sensory perception is essential for maintaining the integrity of the evaluation process.