Description
Bancroft point: a Distillation culinary technique.
Technical
A Bancroft point is the temperature where an azeotrope occurs in a binary system. Although vapor liquid azeotropy is impossible for binary systems which are rigorously described by Raoult's law, for real systems, azeotropy is inevitable at temperatures where the saturation vapor pressure of the components are equal. Such a temperature is called a Bancroft point. However, not all azeotropic binary systems exhibit such a point. Also, a Bancroft point must lie in the valid temperature ranges of the Antoine equation.
Sensory Profile
Aroma ()
Wine Analogy
Similar to the point where wine distillates transition between heads and hearts in pot still distillation
Coffee Analogy
Comparable to the temperature threshold where volatile coffee aromatics begin to degrade
Perfume Analogy
Analogous to the critical temperature where top notes transition to heart notes in perfume distillation